20313324 has 36 divisors (see below), whose sum is σ = 53582256. Its totient is φ = 6476448.

The previous prime is 20313281. The next prime is 20313343. The reversal of 20313324 is 42331302.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×20313324² = 825262263857952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20313297 and 20313306.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11439 + ... + 13094.

It is an arithmetic number, because the mean of its divisors is an integer number (1488396).

Almost surely, 2^20313324 is an apocalyptic number.

It is an amenable number.

20313324 is an abundant number, since it is smaller than the sum of its proper divisors (33268932).

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

20313324 is a wasteful number, since it uses less digits than its factorization.

20313324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24566 (or 24561 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 20313324 is about 4507.0305079953. The cubic root of 20313324 is about 272.8519101830.

Adding to 20313324 its reverse (42331302), we get a palindrome (62644626).

The spelling of 20313324 in words is "twenty million, three hundred thirteen thousand, three hundred twenty-four".