20607408 has 30 divisors (see below), whose sum is σ = 57672524. Its totient is φ = 6869088.

The previous prime is 20607361. The next prime is 20607413. The reversal of 20607408 is 80470602.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71410 + ... + 71697.

Almost surely, 2^20607408 is an apocalyptic number.

It is an amenable number.

20607408 is an abundant number, since it is smaller than the sum of its proper divisors (37065116).

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

20607408 is a wasteful number, since it uses less digits than its factorization.

20607408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143121 (or 143112 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 20607408 is about 4539.5383025149. The cubic root of 20607408 is about 274.1623347626.

The spelling of 20607408 in words is "twenty million, six hundred seven thousand, four hundred eight".