20013324 has 12 divisors (see below), whose sum is σ = 46697784. Its totient is φ = 6671104.

The previous prime is 20013319. The next prime is 20013347. The reversal of 20013324 is 42331002.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833877 + ... + 833900.

It is an arithmetic number, because the mean of its divisors is an integer number (3891482).

Almost surely, 2^20013324 is an apocalyptic number.

It is an amenable number.

20013324 is an abundant number, since it is smaller than the sum of its proper divisors (26684460).

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

20013324 is a wasteful number, since it uses less digits than its factorization.

20013324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667784 (or 1667782 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20013324 is about 4473.6253754645. The cubic root of 20013324 is about 271.5020264459.

Adding to 20013324 its reverse (42331002), we get a palindrome (62344326).

The spelling of 20013324 in words is "twenty million, thirteen thousand, three hundred twenty-four".