20274404 has 12 divisors (see below), whose sum is σ = 37567404. Its totient is φ = 9540864.

The previous prime is 20274391. The next prime is 20274413. The reversal of 20274404 is 40447202.

It can be written as a sum of positive squares in 2 ways, for example, as 16080100 + 4194304 = 4010^2 + 2048^2 .

It is a super-2 number, since 2×20274404² = 822102915110432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20274404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149009 + ... + 149144.

It is an arithmetic number, because the mean of its divisors is an integer number (3130617).

Almost surely, 2^20274404 is an apocalyptic number.

It is an amenable number.

20274404 is a deficient number, since it is larger than the sum of its proper divisors (17293000).

20274404 is a wasteful number, since it uses less digits than its factorization.

20274404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298174 (or 298172 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 20274404 is about 4502.7107390993. The cubic root of 20274404 is about 272.6775388234.

The spelling of 20274404 in words is "twenty million, two hundred seventy-four thousand, four hundred four".