20675248 has 40 divisors (see below), whose sum is σ = 44282880. Its totient is φ = 9272640.

The previous prime is 20675227. The next prime is 20675251. The reversal of 20675248 is 84257602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13161 + ... + 14647.

It is an arithmetic number, because the mean of its divisors is an integer number (1107072).

Almost surely, 2^20675248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20675248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22141440).

20675248 is an abundant number, since it is smaller than the sum of its proper divisors (23607632).

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

20675248 is a wasteful number, since it uses less digits than its factorization.

20675248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 20675248 is about 4547.0042885399. The cubic root of 20675248 is about 274.4628545307.

The spelling of 20675248 in words is "twenty million, six hundred seventy-five thousand, two hundred forty-eight".