20801274 has 16 divisors (see below), whose sum is σ = 44802912. Its totient is φ = 6400368.

The previous prime is 20801243. The next prime is 20801317. The reversal of 20801274 is 47210802.

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, 133264 + ... + 133419.

It is an arithmetic number, because the mean of its divisors is an integer number (2800182).

Almost surely, 2^20801274 is an apocalyptic number.

20801274 is an abundant number, since it is smaller than the sum of its proper divisors (24001638).

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

20801274 is a wasteful number, since it uses less digits than its factorization.

20801274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266701.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 20801274 is about 4560.8413697475. The cubic root of 20801274 is about 275.0193881647.

The spelling of 20801274 in words is "twenty million, eight hundred one thousand, two hundred seventy-four".