20396524 has 6 divisors (see below), whose sum is σ = 35693924. Its totient is φ = 10198260.

The previous prime is 20396507. The next prime is 20396533. The reversal of 20396524 is 42569302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2549562 + ... + 2549569.

Almost surely, 2^20396524 is an apocalyptic number.

It is an amenable number.

20396524 is a deficient number, since it is larger than the sum of its proper divisors (15297400).

20396524 is a wasteful number, since it uses less digits than its factorization.

20396524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5099135 (or 5099133 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 20396524 is about 4516.2511001936. The cubic root of 20396524 is about 273.2239214420.

The spelling of 20396524 in words is "twenty million, three hundred ninety-six thousand, five hundred twenty-four".