20244504 has 32 divisors (see below), whose sum is σ = 57841920. Its totient is φ = 5784096.

The previous prime is 20244503. The next prime is 20244509. The reversal of 20244504 is 40544202.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60084 + ... + 60419.

It is an arithmetic number, because the mean of its divisors is an integer number (1807560).

Almost surely, 2^20244504 is an apocalyptic number.

20244504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20244504 is an abundant number, since it is smaller than the sum of its proper divisors (37597416).

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

20244504 is a wasteful number, since it uses less digits than its factorization.

20244504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120519 (or 120515 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 20244504 is about 4499.3892918928. The cubic root of 20244504 is about 272.5434276942.

Adding to 20244504 its reverse (40544202), we get a palindrome (60788706).

The spelling of 20244504 in words is "twenty million, two hundred forty-four thousand, five hundred four".