20153408 has 28 divisors (see below), whose sum is σ = 43629072. Its totient is φ = 9160320.

The previous prime is 20153401. The next prime is 20153423. The reversal of 20153408 is 80435102.

It is not an unprimeable number, because it can be changed into a prime (20153401) 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, 13610 + ... + 15017.

Almost surely, 2^20153408 is an apocalyptic number.

It is an amenable number.

20153408 is an abundant number, since it is smaller than the sum of its proper divisors (23475664).

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

20153408 is a wasteful number, since it uses less digits than its factorization.

20153408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28650 (or 28640 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 20153408 is about 4489.2547265665. The cubic root of 20153408 is about 272.1340170027.

The spelling of 20153408 in words is "twenty million, one hundred fifty-three thousand, four hundred eight".