157764432 has 80 divisors (see below), whose sum is σ = 467148672. Its totient is φ = 44943360.

The previous prime is 157764427. The next prime is 157764449. The reversal of 157764432 is 234467751.

157764432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206932 + ... + 207692.

Almost surely, 2^157764432 is an apocalyptic number.

157764432 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 157764432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233574336).

157764432 is an abundant number, since it is smaller than the sum of its proper divisors (309384240).

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

157764432 is a wasteful number, since it uses less digits than its factorization.

157764432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396 (or 1390 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 157764432 is about 12560.4312027892. The cubic root of 157764432 is about 540.3432111722.

The spelling of 157764432 in words is "one hundred fifty-seven million, seven hundred sixty-four thousand, four hundred thirty-two".