20412916 has 24 divisors (see below), whose sum is σ = 38525760. Its totient is φ = 9432000.

The previous prime is 20412913. The next prime is 20412923. The reversal of 20412916 is 61921402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20412913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160 + ... + 6391.

It is an arithmetic number, because the mean of its divisors is an integer number (1605240).

Almost surely, 2^20412916 is an apocalyptic number.

It is an amenable number.

20412916 is a deficient number, since it is larger than the sum of its proper divisors (18112844).

20412916 is a wasteful number, since it uses less digits than its factorization.

20412916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6615 (or 6613 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 20412916 is about 4518.0655152399. The cubic root of 20412916 is about 273.2970954669.

The spelling of 20412916 in words is "twenty million, four hundred twelve thousand, nine hundred sixteen".