612156432 has 20 divisors (see below), whose sum is σ = 1581404240. Its totient is φ = 204052128.

The previous prime is 612156409. The next prime is 612156439. The reversal of 612156432 is 234651216.

It is a self number, because there is not a number n which added to its sum of digits gives 612156432.

It is not an unprimeable number, because it can be changed into a prime (612156439) 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 3 ways as a sum of consecutive naturals, for example, 6376582 + ... + 6376677.

It is an arithmetic number, because the mean of its divisors is an integer number (79070212).

Almost surely, 2^612156432 is an apocalyptic number.

It is an amenable number.

612156432 is an abundant number, since it is smaller than the sum of its proper divisors (969247808).

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

612156432 is a wasteful number, since it uses less digits than its factorization.

612156432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12753270 (or 12753264 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 612156432 is about 24741.7952461013. The cubic root of 612156432 is about 849.0908073087.

The spelling of 612156432 in words is "six hundred twelve million, one hundred fifty-six thousand, four hundred thirty-two".