20630716 has 24 divisors (see below), whose sum is σ = 37537920. Its totient is φ = 9909312.

The previous prime is 20630711. The next prime is 20630761. The reversal of 20630716 is 61703602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20630711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33685 + ... + 34291.

It is an arithmetic number, because the mean of its divisors is an integer number (1564080).

Almost surely, 2^20630716 is an apocalyptic number.

It is an amenable number.

20630716 is a deficient number, since it is larger than the sum of its proper divisors (16907204).

20630716 is a wasteful number, since it uses less digits than its factorization.

20630716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 20630716 is about 4542.1047984387. The cubic root of 20630716 is about 274.2656595477.

The spelling of 20630716 in words is "twenty million, six hundred thirty thousand, seven hundred sixteen".