20774804 has 12 divisors (see below), whose sum is σ = 36540000. Its totient is φ = 10334808.

The previous prime is 20774783. The next prime is 20774807. The reversal of 20774804 is 40847702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20774807) 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, 12254 + ... + 13845.

It is an arithmetic number, because the mean of its divisors is an integer number (3045000).

Almost surely, 2^20774804 is an apocalyptic number.

It is an amenable number.

20774804 is a deficient number, since it is larger than the sum of its proper divisors (15765196).

20774804 is a wasteful number, since it uses less digits than its factorization.

20774804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26302 (or 26300 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 20774804 is about 4557.9385691341. The cubic root of 20774804 is about 274.9026829208.

The spelling of 20774804 in words is "twenty million, seven hundred seventy-four thousand, eight hundred four".