20323344 has 20 divisors (see below), whose sum is σ = 52502096. Its totient is φ = 6774432.

The previous prime is 20323339. The next prime is 20323351. The reversal of 20323344 is 44332302.

It is a super-2 number, since 2×20323344² = 826076622684672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20323344.

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, 211654 + ... + 211749.

Almost surely, 2^20323344 is an apocalyptic number.

20323344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20323344 is an abundant number, since it is smaller than the sum of its proper divisors (32178752).

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

20323344 is a wasteful number, since it uses less digits than its factorization.

20323344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423414 (or 423408 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 20323344 is about 4508.1419675960. The cubic root of 20323344 is about 272.8967662380.

Adding to 20323344 its reverse (44332302), we get a palindrome (64655646).

The spelling of 20323344 in words is "twenty million, three hundred twenty-three thousand, three hundred forty-four".