162957090 has 64 divisors (see below), whose sum is σ = 408965760. Its totient is φ = 41502720.

The previous prime is 162957077. The next prime is 162957101. The reversal of 162957090 is 90759261.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 83425 + ... + 85355.

It is an arithmetic number, because the mean of its divisors is an integer number (6390090).

Almost surely, 2^162957090 is an apocalyptic number.

162957090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 162957090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204482880).

162957090 is an abundant number, since it is smaller than the sum of its proper divisors (246008670).

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

162957090 is a wasteful number, since it uses less digits than its factorization.

162957090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 162957090 is about 12765.4647388961. The cubic root of 162957090 is about 546.2076187169.

The spelling of 162957090 in words is "one hundred sixty-two million, nine hundred fifty-seven thousand, ninety".