16157900 has 72 divisors (see below), whose sum is σ = 39382896. Its totient is φ = 5702400.

The previous prime is 16157899. The next prime is 16157903. The reversal of 16157900 is 975161.

It is a happy number.

It is a super-2 number, since 2×16157900² = 522155464820000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16157903) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 40502 + ... + 40898.

Almost surely, 2^16157900 is an apocalyptic number.

16157900 is a gapful number since it is divisible by the number (10) 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 16157900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19691448).

16157900 is an abundant number, since it is smaller than the sum of its proper divisors (23224996).

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

16157900 is a wasteful number, since it uses less digits than its factorization.

16157900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 16157900 is about 4019.6890426997. The cubic root of 16157900 is about 252.8104210774.

The spelling of 16157900 in words is "sixteen million, one hundred fifty-seven thousand, nine hundred".