20240044440 has 128 divisors (see below), whose sum is σ = 75703057920. Its totient is φ = 4205721600.

The previous prime is 20240044417. The next prime is 20240044477. The reversal of 20240044440 is 4444004202.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20240044440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1086001 + ... + 1104480.

It is an arithmetic number, because the mean of its divisors is an integer number (591430140).

Almost surely, 2^20240044440 is an apocalyptic number.

20240044440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20240044440 is an abundant number, since it is smaller than the sum of its proper divisors (55463013480).

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

20240044440 is a wasteful number, since it uses less digits than its factorization.

20240044440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190513 (or 2190509 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20240044440 its reverse (4444004202), we get a palindrome (24684048642).

The spelling of 20240044440 in words is "twenty billion, two hundred forty million, forty-four thousand, four hundred forty".