1191282432 has 72 divisors (see below), whose sum is σ = 3175689216. Its totient is φ = 396450816.

The previous prime is 1191282427. The next prime is 1191282437. The reversal of 1191282432 is 2342821911.

It is an interprime number because it is at equal distance from previous prime (1191282427) and next prime (1191282437).

It is a junction number, because it is equal to n+sod(n) for n = 1191282393 and 1191282402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1191282437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834103 + ... + 835529.

Almost surely, 2^1191282432 is an apocalyptic number.

1191282432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1191282432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1587844608).

1191282432 is an abundant number, since it is smaller than the sum of its proper divisors (1984406784).

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

1191282432 is a wasteful number, since it uses less digits than its factorization.

1191282432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2533 (or 2519 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 1191282432 is about 34514.9595393070. The cubic root of 1191282432 is about 1060.0790352840.

The spelling of 1191282432 in words is "one billion, one hundred ninety-one million, two hundred eighty-two thousand, four hundred thirty-two".