23420544 has 64 divisors (see below), whose sum is σ = 71106240. Its totient is φ = 6690816.

The previous prime is 23420533. The next prime is 23420563. The reversal of 23420544 is 44502432.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1669 + ... + 7044.

It is an arithmetic number, because the mean of its divisors is an integer number (1111035).

Almost surely, 2^23420544 is an apocalyptic number.

23420544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23420544 is an abundant number, since it is smaller than the sum of its proper divisors (47685696).

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

23420544 is an equidigital number, since it uses as much as digits as its factorization.

23420544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8737 (or 8725 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 23420544 is about 4839.4776577643. The cubic root of 23420544 is about 286.1095314569.

Adding to 23420544 its reverse (44502432), we get a palindrome (67922976).

The spelling of 23420544 in words is "twenty-three million, four hundred twenty thousand, five hundred forty-four".