20292816 has 40 divisors (see below), whose sum is σ = 52585920. Its totient is φ = 6743296.

The previous prime is 20292793. The next prime is 20292821. The reversal of 20292816 is 61829202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26941 + ... + 27683.

It is an arithmetic number, because the mean of its divisors is an integer number (1314648).

Almost surely, 2^20292816 is an apocalyptic number.

It is an amenable number.

20292816 is an abundant number, since it is smaller than the sum of its proper divisors (32293104).

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

20292816 is a wasteful number, since it uses less digits than its factorization.

20292816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323 (or 1317 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 20292816 is about 4504.7548212972. The cubic root of 20292816 is about 272.7600569882.

The spelling of 20292816 in words is "twenty million, two hundred ninety-two thousand, eight hundred sixteen".