1072155432 has 16 divisors (see below), whose sum is σ = 2680388640. Its totient is φ = 357385136.

The previous prime is 1072155431. The next prime is 1072155443. The reversal of 1072155432 is 2345512701.

It is a super-2 number, since 2×1072155432² = 2299034540734213248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1072155432.

It is not an unprimeable number, because it can be changed into a prime (1072155431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22336548 + ... + 22336595.

It is an arithmetic number, because the mean of its divisors is an integer number (167524290).

Almost surely, 2^1072155432 is an apocalyptic number.

1072155432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1072155432 is an abundant number, since it is smaller than the sum of its proper divisors (1608233208).

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

1072155432 is a wasteful number, since it uses less digits than its factorization.

1072155432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44673152 (or 44673148 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 1072155432 is about 32743.7846315908. The cubic root of 1072155432 is about 1023.4954510022.

The spelling of 1072155432 in words is "one billion, seventy-two million, one hundred fifty-five thousand, four hundred thirty-two".