20157296 has 20 divisors (see below), whose sum is σ = 39229632. Its totient is φ = 10033536.

The previous prime is 20157287. The next prime is 20157301. The reversal of 20157296 is 69275102.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025 + ... + 6431.

Almost surely, 2^20157296 is an apocalyptic number.

It is an amenable number.

20157296 is a deficient number, since it is larger than the sum of its proper divisors (19072336).

20157296 is a wasteful number, since it uses less digits than its factorization.

20157296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5648 (or 5642 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 20157296 is about 4489.6877396986. The cubic root of 20157296 is about 272.1515159293.

The spelling of 20157296 in words is "twenty million, one hundred fifty-seven thousand, two hundred ninety-six".