20375616 has 28 divisors (see below), whose sum is σ = 53910992. Its totient is φ = 6791808.

The previous prime is 20375573. The next prime is 20375627. The reversal of 20375616 is 61657302.

It is a super-3 number, since 3×20375616³ (a number of 23 digits) contains 333 as substring.

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, 52870 + ... + 53253.

Almost surely, 2^20375616 is an apocalyptic number.

It is an amenable number.

20375616 is an abundant number, since it is smaller than the sum of its proper divisors (33535376).

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

20375616 is a wasteful number, since it uses less digits than its factorization.

20375616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106138 (or 106128 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 20375616 is about 4513.9357549704. The cubic root of 20375616 is about 273.1305310388.

The spelling of 20375616 in words is "twenty million, three hundred seventy-five thousand, six hundred sixteen".