20536814 has 16 divisors (see below), whose sum is σ = 31983120. Its totient is φ = 9878400.

The previous prime is 20536783. The next prime is 20536823. The reversal of 20536814 is 41863502.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22817 + ... + 23699.

It is an arithmetic number, because the mean of its divisors is an integer number (1998945).

Almost surely, 2^20536814 is an apocalyptic number.

20536814 is a deficient number, since it is larger than the sum of its proper divisors (11446306).

20536814 is a wasteful number, since it uses less digits than its factorization.

20536814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 20536814 is about 4531.7561717286. The cubic root of 20536814 is about 273.8489141657.

The spelling of 20536814 in words is "twenty million, five hundred thirty-six thousand, eight hundred fourteen".