20396502 has 32 divisors (see below), whose sum is σ = 51801600. Its totient is φ = 5827464.

The previous prime is 20396479. The next prime is 20396507. The reversal of 20396502 is 20569302.

20396502 is a `hidden beast` number, since 2 + 0 + 3 + 9 + 650 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20396507) 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, 26602 + ... + 27357.

It is an arithmetic number, because the mean of its divisors is an integer number (1618800).

Almost surely, 2^20396502 is an apocalyptic number.

20396502 is an abundant number, since it is smaller than the sum of its proper divisors (31405098).

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

20396502 is a wasteful number, since it uses less digits than its factorization.

20396502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53977 (or 53971 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 20396502 is about 4516.2486645445. The cubic root of 20396502 is about 273.2238232075.

The spelling of 20396502 in words is "twenty million, three hundred ninety-six thousand, five hundred two".