18713630 has 32 divisors (see below), whose sum is σ = 37171008. Its totient is φ = 6739200.

The previous prime is 18713603. The next prime is 18713633. The reversal of 18713630 is 3631781.

It is a junction number, because it is equal to n+sod(n) for n = 18713593 and 18713602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18713633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3575 + ... + 7085.

It is an arithmetic number, because the mean of its divisors is an integer number (1161594).

Almost surely, 2^18713630 is an apocalyptic number.

18713630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18713630 is a deficient number, since it is larger than the sum of its proper divisors (18457378).

18713630 is a wasteful number, since it uses less digits than its factorization.

18713630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3572.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 18713630 is about 4325.9253345383. The cubic root of 18713630 is about 265.4927582573.

The spelling of 18713630 in words is "eighteen million, seven hundred thirteen thousand, six hundred thirty".