157285386 has 48 divisors (see below), whose sum is σ = 358581600. Its totient is φ = 49752864.

The previous prime is 157285369. The next prime is 157285393. The reversal of 157285386 is 683582751.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28245 + ... + 33351.

It is an arithmetic number, because the mean of its divisors is an integer number (7470450).

Almost surely, 2^157285386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157285386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179290800).

157285386 is an abundant number, since it is smaller than the sum of its proper divisors (201296214).

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

157285386 is a wasteful number, since it uses less digits than its factorization.

157285386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5203 (or 5200 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 157285386 is about 12541.3470568356. The cubic root of 157285386 is about 539.7957457962.

The spelling of 157285386 in words is "one hundred fifty-seven million, two hundred eighty-five thousand, three hundred eighty-six".