20825948 has 48 divisors (see below), whose sum is σ = 44706816. Its totient is φ = 8352960.

The previous prime is 20825939. The next prime is 20825963. The reversal of 20825948 is 84952802.

It is a super-2 number, since 2×20825948² = 867440220197408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12365 + ... + 13947.

It is an arithmetic number, because the mean of its divisors is an integer number (931392).

Almost surely, 2^20825948 is an apocalyptic number.

It is an amenable number.

20825948 is an abundant number, since it is smaller than the sum of its proper divisors (23880868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20825948 is a wasteful number, since it uses less digits than its factorization.

20825948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634 (or 1632 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 20825948 is about 4563.5455514326. The cubic root of 20825948 is about 275.1280857872.

The spelling of 20825948 in words is "twenty million, eight hundred twenty-five thousand, nine hundred forty-eight".