20295816 has 16 divisors (see below), whose sum is σ = 50739600. Its totient is φ = 6765264.

The previous prime is 20295799. The next prime is 20295833. The reversal of 20295816 is 61859202.

It is an interprime number because it is at equal distance from previous prime (20295799) and next prime (20295833).

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, 422806 + ... + 422853.

It is an arithmetic number, because the mean of its divisors is an integer number (3171225).

Almost surely, 2^20295816 is an apocalyptic number.

It is an amenable number.

20295816 is an abundant number, since it is smaller than the sum of its proper divisors (30443784).

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

20295816 is a wasteful number, since it uses less digits than its factorization.

20295816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845668 (or 845664 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 20295816 is about 4505.0877904876. The cubic root of 20295816 is about 272.7734975386.

The spelling of 20295816 in words is "twenty million, two hundred ninety-five thousand, eight hundred sixteen".