20774402 has 32 divisors (see below), whose sum is σ = 35610624. Its totient is φ = 9003600.

The previous prime is 20774401. The next prime is 20774407. The reversal of 20774402 is 20447702.

It is not an unprimeable number, because it can be changed into a prime (20774401) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 56423 + ... + 56789.

It is an arithmetic number, because the mean of its divisors is an integer number (1112832).

Almost surely, 2^20774402 is an apocalyptic number.

20774402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20774402 is a deficient number, since it is larger than the sum of its proper divisors (14836222).

20774402 is a wasteful number, since it uses less digits than its factorization.

20774402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494.

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 20774402 is about 4557.8944700377. The cubic root of 20774402 is about 274.9009097538.

The spelling of 20774402 in words is "twenty million, seven hundred seventy-four thousand, four hundred two".