20675328 has 36 divisors (see below), whose sum is σ = 55028568. Its totient is φ = 6891520.

The previous prime is 20675309. The next prime is 20675351. The reversal of 20675328 is 82357602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12693 + ... + 14228.

Almost surely, 2^20675328 is an apocalyptic number.

It is an amenable number.

20675328 is an abundant number, since it is smaller than the sum of its proper divisors (34353240).

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

20675328 is an equidigital number, since it uses as much as digits as its factorization.

20675328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26940 (or 26926 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 20675328 is about 4547.0130855321. The cubic root of 20675328 is about 274.4632085288.

The spelling of 20675328 in words is "twenty million, six hundred seventy-five thousand, three hundred twenty-eight".