20774008 has 16 divisors (see below), whose sum is σ = 39150000. Its totient is φ = 10334016.

The previous prime is 20773997. The next prime is 20774009. The reversal of 20774008 is 80047702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20774009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4933 + ... + 8116.

It is an arithmetic number, because the mean of its divisors is an integer number (2446875).

Almost surely, 2^20774008 is an apocalyptic number.

It is an amenable number.

20774008 is a deficient number, since it is larger than the sum of its proper divisors (18375992).

20774008 is a wasteful number, since it uses less digits than its factorization.

20774008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13254 (or 13250 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 20774008 is about 4557.8512481212. The cubic root of 20774008 is about 274.8991718515.

The spelling of 20774008 in words is "twenty million, seven hundred seventy-four thousand, eight".