20974048 has 12 divisors (see below), whose sum is σ = 41292720. Its totient is φ = 10487008.

The previous prime is 20974021. The next prime is 20974049. The reversal of 20974048 is 84047902.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20974049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327688 + ... + 327751.

It is an arithmetic number, because the mean of its divisors is an integer number (3441060).

Almost surely, 2^20974048 is an apocalyptic number.

It is an amenable number.

20974048 is a deficient number, since it is larger than the sum of its proper divisors (20318672).

20974048 is an equidigital number, since it uses as much as digits as its factorization.

20974048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655449 (or 655441 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 20974048 is about 4579.7432242430. The cubic root of 20974048 is about 275.7787206302.

The spelling of 20974048 in words is "twenty million, nine hundred seventy-four thousand, forty-eight".