20372630 has 16 divisors (see below), whose sum is σ = 38828160. Its totient is φ = 7669632.

The previous prime is 20372591. The next prime is 20372659. The reversal of 20372630 is 3627302.

It is a junction number, because it is equal to n+sod(n) for n = 20372596 and 20372605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59750 + ... + 60089.

It is an arithmetic number, because the mean of its divisors is an integer number (2426760).

Almost surely, 2^20372630 is an apocalyptic number.

20372630 is a deficient number, since it is larger than the sum of its proper divisors (18455530).

20372630 is a wasteful number, since it uses less digits than its factorization.

20372630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119863.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 20372630 is about 4513.6049893627. The cubic root of 20372630 is about 273.1171881684.

Adding to 20372630 its reverse (3627302), we get a palindrome (23999932).

The spelling of 20372630 in words is "twenty million, three hundred seventy-two thousand, six hundred thirty".