1243432032 has 48 divisors (see below), whose sum is σ = 3339927360. Its totient is φ = 404836992.

The previous prime is 1243432031. The next prime is 1243432033. The reversal of 1243432032 is 2302343421.

It is an interprime number because it is at equal distance from previous prime (1243432031) and next prime (1243432033).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1243432032² = 3092246436407298048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1243431993 and 1243432011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243432031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146482 + ... + 154737.

It is an arithmetic number, because the mean of its divisors is an integer number (69581820).

Almost surely, 2^1243432032 is an apocalyptic number.

1243432032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1243432032 is an abundant number, since it is smaller than the sum of its proper divisors (2096495328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243432032 is a wasteful number, since it uses less digits than its factorization.

1243432032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301275 (or 301267 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1243432032 is about 35262.3316302255. The cubic root of 1243432032 is about 1075.3273297777.

Adding to 1243432032 its reverse (2302343421), we get a palindrome (3545775453).

The spelling of 1243432032 in words is "one billion, two hundred forty-three million, four hundred thirty-two thousand, thirty-two".