20393496 has 48 divisors (see below), whose sum is σ = 57142800. Its totient is φ = 6562752.

The previous prime is 20393491. The next prime is 20393507. The reversal of 20393496 is 69439302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20393496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20393491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2796 + ... + 6971.

It is an arithmetic number, because the mean of its divisors is an integer number (1190475).

Almost surely, 2^20393496 is an apocalyptic number.

It is an amenable number.

20393496 is an abundant number, since it is smaller than the sum of its proper divisors (36749304).

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

20393496 is a wasteful number, since it uses less digits than its factorization.

20393496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9808 (or 9801 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 20393496 is about 4515.9158539548. The cubic root of 20393496 is about 273.2104001351.

The spelling of 20393496 in words is "twenty million, three hundred ninety-three thousand, four hundred ninety-six".