20927152 has 20 divisors (see below), whose sum is σ = 40631080. Its totient is φ = 10441728.

The previous prime is 20927147. The next prime is 20927233. The reversal of 20927152 is 25172902.

It is a super-2 number, since 2×20927152² = 875891381662208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20927152.

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 3 ways as a sum of consecutive naturals, for example, 8848 + ... + 10960.

It is an arithmetic number, because the mean of its divisors is an integer number (2031554).

Almost surely, 2^20927152 is an apocalyptic number.

It is an amenable number.

20927152 is a deficient number, since it is larger than the sum of its proper divisors (19703928).

20927152 is a wasteful number, since it uses less digits than its factorization.

20927152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740 (or 2734 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 20927152 is about 4574.6204214120. The cubic root of 20927152 is about 275.5730288184.

The spelling of 20927152 in words is "twenty million, nine hundred twenty-seven thousand, one hundred fifty-two".