20785496 has 16 divisors (see below), whose sum is σ = 39045240. Its totient is φ = 10373440.

The previous prime is 20785493. The next prime is 20785511. The reversal of 20785496 is 69458702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20785493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2831 + ... + 7041.

Almost surely, 2^20785496 is an apocalyptic number.

It is an amenable number.

20785496 is a deficient number, since it is larger than the sum of its proper divisors (18259744).

20785496 is a wasteful number, since it uses less digits than its factorization.

20785496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4834 (or 4830 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 20785496 is about 4559.1113169125. Note that the first 3 decimals coincide. The cubic root of 20785496 is about 274.9498354778.

The spelling of 20785496 in words is "twenty million, seven hundred eighty-five thousand, four hundred ninety-six".