20316814 has 16 divisors (see below), whose sum is σ = 36662400. Its totient is φ = 8248824.

The previous prime is 20316799. The next prime is 20316817. The reversal of 20316814 is 41861302.

It is a super-2 number, since 2×20316814² = 825545862221192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20316817) 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, 37924 + ... + 38455.

It is an arithmetic number, because the mean of its divisors is an integer number (2291400).

Almost surely, 2^20316814 is an apocalyptic number.

20316814 is a deficient number, since it is larger than the sum of its proper divisors (16345586).

20316814 is a wasteful number, since it uses less digits than its factorization.

20316814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76407.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20316814 is about 4507.4176642508. The cubic root of 20316814 is about 272.8675353729.

The spelling of 20316814 in words is "twenty million, three hundred sixteen thousand, eight hundred fourteen".