20696502 has 32 divisors (see below), whose sum is σ = 42844032. Its totient is φ = 6660864.

The previous prime is 20696483. The next prime is 20696503. The reversal of 20696502 is 20569602.

It is a self number, because there is not a number n which added to its sum of digits gives 20696502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20696503) 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, 24613 + ... + 25439.

It is an arithmetic number, because the mean of its divisors is an integer number (1338876).

Almost surely, 2^20696502 is an apocalyptic number.

20696502 is an abundant number, since it is smaller than the sum of its proper divisors (22147530).

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

20696502 is a wasteful number, since it uses less digits than its factorization.

20696502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 20696502 is about 4549.3408313733. The cubic root of 20696502 is about 274.5568709078.

The spelling of 20696502 in words is "twenty million, six hundred ninety-six thousand, five hundred two".