20366408 has 48 divisors (see below), whose sum is σ = 42439680. Its totient is φ = 9143552.

The previous prime is 20366399. The next prime is 20366413. The reversal of 20366408 is 80466302.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52985 + ... + 53367.

It is an arithmetic number, because the mean of its divisors is an integer number (884160).

Almost surely, 2^20366408 is an apocalyptic number.

It is an amenable number.

20366408 is an abundant number, since it is smaller than the sum of its proper divisors (22073272).

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

20366408 is a wasteful number, since it uses less digits than its factorization.

20366408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 20366408 is about 4512.9156872248. The cubic root of 20366408 is about 273.0893811192.

The spelling of 20366408 in words is "twenty million, three hundred sixty-six thousand, four hundred eight".