20772344 has 16 divisors (see below), whose sum is σ = 39047400. Its totient is φ = 10359712.

The previous prime is 20772341. The next prime is 20772359. The reversal of 20772344 is 44327702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20772341) 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, 254 + ... + 6450.

Almost surely, 2^20772344 is an apocalyptic number.

It is an amenable number.

20772344 is a deficient number, since it is larger than the sum of its proper divisors (18275056).

20772344 is a wasteful number, since it uses less digits than its factorization.

20772344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6622 (or 6618 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 20772344 is about 4557.6687023082. The cubic root of 20772344 is about 274.8918318390.

The spelling of 20772344 in words is "twenty million, seven hundred seventy-two thousand, three hundred forty-four".