20247616 has 28 divisors (see below), whose sum is σ = 42296080. Its totient is φ = 9590400.

The previous prime is 20247611. The next prime is 20247671. The reversal of 20247616 is 61674202.

It is not an unprimeable number, because it can be changed into a prime (20247611) 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, 7110 + ... + 9541.

Almost surely, 2^20247616 is an apocalyptic number.

It is an amenable number.

20247616 is an abundant number, since it is smaller than the sum of its proper divisors (22048464).

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

20247616 is a wasteful number, since it uses less digits than its factorization.

20247616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16682 (or 16672 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20247616 is about 4499.7351033144. The cubic root of 20247616 is about 272.5573921705.

The spelling of 20247616 in words is "twenty million, two hundred forty-seven thousand, six hundred sixteen".