1243456332 has 12 divisors (see below), whose sum is σ = 2901398136. Its totient is φ = 414485440.

The previous prime is 1243456297. The next prime is 1243456367. The reversal of 1243456332 is 2336543421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1243456297) and next prime (1243456367).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1243456293 and 1243456302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51810669 + ... + 51810692.

It is an arithmetic number, because the mean of its divisors is an integer number (241783178).

Almost surely, 2^1243456332 is an apocalyptic number.

1243456332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1243456332 is an abundant number, since it is smaller than the sum of its proper divisors (1657941804).

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

1243456332 is a wasteful number, since it uses less digits than its factorization.

1243456332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103621368 (or 103621366 counting only the distinct ones).

The product of its digits is 51840, while the sum is 33.

The square root of 1243456332 is about 35262.6761888544. The cubic root of 1243456332 is about 1075.3343346597.

Adding to 1243456332 its reverse (2336543421), we get a palindrome (3579999753).

The spelling of 1243456332 in words is "one billion, two hundred forty-three million, four hundred fifty-six thousand, three hundred thirty-two".