157828386 has 8 divisors (see below), whose sum is σ = 315656784. Its totient is φ = 52609460.

The previous prime is 157828381. The next prime is 157828441. The reversal of 157828386 is 683828751.

It is a sphenic number, since it is the product of 3 distinct primes.

157828386 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (157828381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13152360 + ... + 13152371.

It is an arithmetic number, because the mean of its divisors is an integer number (39457098).

Almost surely, 2^157828386 is an apocalyptic number.

157828386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

157828386 is a wasteful number, since it uses less digits than its factorization.

157828386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26304736.

The product of its digits is 645120, while the sum is 48.

The square root of 157828386 is about 12562.9767969220. The cubic root of 157828386 is about 540.4162154626.

The spelling of 157828386 in words is "one hundred fifty-seven million, eight hundred twenty-eight thousand, three hundred eighty-six".