157783728 has 40 divisors (see below), whose sum is σ = 408880576. Its totient is φ = 52430400.

The previous prime is 157783721. The next prime is 157783729. The reversal of 157783728 is 827387751.

157783728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (157783721) 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, 10923 + ... + 20853.

Almost surely, 2^157783728 is an apocalyptic number.

It is an amenable number.

157783728 is an abundant number, since it is smaller than the sum of its proper divisors (251096848).

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

157783728 is a wasteful number, since it uses less digits than its factorization.

157783728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10273 (or 10267 counting only the distinct ones).

The product of its digits is 658560, while the sum is 48.

The square root of 157783728 is about 12561.1993057988. The cubic root of 157783728 is about 540.3652398754.

The spelling of 157783728 in words is "one hundred fifty-seven million, seven hundred eighty-three thousand, seven hundred twenty-eight".