20696304 has 20 divisors (see below), whose sum is σ = 53465576. Its totient is φ = 6898752.

The previous prime is 20696281. The next prime is 20696317. The reversal of 20696304 is 40369602.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215539 + ... + 215634.

Almost surely, 2^20696304 is an apocalyptic number.

20696304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20696304 is an abundant number, since it is smaller than the sum of its proper divisors (32769272).

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

20696304 is a wasteful number, since it uses less digits than its factorization.

20696304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431184 (or 431178 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 20696304 is about 4549.3190699268. The cubic root of 20696304 is about 274.5559953584. Note that the first 3 decimals are identical.

Subtracting from 20696304 its product of nonzero digits (7776), we obtain a triangular number (20688528 = T₆₄₃₂).

The spelling of 20696304 in words is "twenty million, six hundred ninety-six thousand, three hundred four".