20366404 has 24 divisors (see below), whose sum is σ = 37951200. Its totient is φ = 9535680.

The previous prime is 20366399. The next prime is 20366413. The reversal of 20366404 is 40466302.

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, 5259 + ... + 8269.

It is an arithmetic number, because the mean of its divisors is an integer number (1581300).

Almost surely, 2^20366404 is an apocalyptic number.

It is an amenable number.

20366404 is a deficient number, since it is larger than the sum of its proper divisors (17584796).

20366404 is a wasteful number, since it uses less digits than its factorization.

20366404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123 (or 3121 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 20366404 is about 4512.9152440523. The cubic root of 20366404 is about 273.0893632408.

The spelling of 20366404 in words is "twenty million, three hundred sixty-six thousand, four hundred four".