20853074 has 16 divisors (see below), whose sum is σ = 34326720. Its totient is φ = 9422160.

The previous prime is 20853061. The next prime is 20853083. The reversal of 20853074 is 47035802.

It is a happy number.

It is a Curzon 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, 1067 + ... + 6545.

It is an arithmetic number, because the mean of its divisors is an integer number (2145420).

Almost surely, 2^20853074 is an apocalyptic number.

20853074 is a deficient number, since it is larger than the sum of its proper divisors (13473646).

20853074 is a wasteful number, since it uses less digits than its factorization.

20853074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5665.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 20853074 is about 4566.5166155397. The cubic root of 20853074 is about 275.2474862988.

Adding to 20853074 its reverse (47035802), we get a palindrome (67888876).

The spelling of 20853074 in words is "twenty million, eight hundred fifty-three thousand, seventy-four".