20696630 has 16 divisors (see below), whose sum is σ = 37425024. Its totient is φ = 8240640.

The previous prime is 20696587. The next prime is 20696699. The reversal of 20696630 is 3669602.

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, 2411 + ... + 6870.

It is an arithmetic number, because the mean of its divisors is an integer number (2339064).

Almost surely, 2^20696630 is an apocalyptic number.

20696630 is a deficient number, since it is larger than the sum of its proper divisors (16728394).

20696630 is a wasteful number, since it uses less digits than its factorization.

20696630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9511.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 20696630 is about 4549.3548993236. The cubic root of 20696630 is about 274.5574369166.

The spelling of 20696630 in words is "twenty million, six hundred ninety-six thousand, six hundred thirty".