20968496 has 40 divisors (see below), whose sum is σ = 42050880. Its totient is φ = 10123776.

The previous prime is 20968481. The next prime is 20968499. The reversal of 20968496 is 69486902.

It is not an unprimeable number, because it can be changed into a prime (20968499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66836 + ... + 67148.

It is an arithmetic number, because the mean of its divisors is an integer number (1051272).

Almost surely, 2^20968496 is an apocalyptic number.

It is an amenable number.

20968496 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20968496 is a wasteful number, since it uses less digits than its factorization.

20968496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 20968496 is about 4579.1370366042. The cubic root of 20968496 is about 275.7543848641.

The spelling of 20968496 in words is "twenty million, nine hundred sixty-eight thousand, four hundred ninety-six".