157768236 has 108 divisors (see below), whose sum is σ = 430545752. Its totient is φ = 50512896.

The previous prime is 157768213. The next prime is 157768283. The reversal of 157768236 is 632867751.

157768236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (108).

Its product of digits (423360) is a multiple of the sum of its prime factors (270).

It is a junction number, because it is equal to n+sod(n) for n = 157768191 and 157768200.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 817356 + ... + 817548.

Almost surely, 2^157768236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157768236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215272876).

157768236 is an abundant number, since it is smaller than the sum of its proper divisors (272777516).

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

157768236 is a wasteful number, since it uses less digits than its factorization.

157768236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 227 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 157768236 is about 12560.5826297987. The cubic root of 157768236 is about 540.3475540375.

The spelling of 157768236 in words is "one hundred fifty-seven million, seven hundred sixty-eight thousand, two hundred thirty-six".