1044400220 has 12 divisors (see below), whose sum is σ = 2193240504. Its totient is φ = 417760080.

The previous prime is 1044400213. The next prime is 1044400237. The reversal of 1044400220 is 220044401.

It is a congruent number.

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, 26109986 + ... + 26110025.

It is an arithmetic number, because the mean of its divisors is an integer number (182770042).

Almost surely, 2^1044400220 is an apocalyptic number.

1044400220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044400220 is an abundant number, since it is smaller than the sum of its proper divisors (1148840284).

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

1044400220 is a wasteful number, since it uses less digits than its factorization.

1044400220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52220020 (or 52220018 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1044400220 is about 32317.1814983918. The cubic root of 1044400220 is about 1014.5862793319.

Adding to 1044400220 its reverse (220044401), we get a palindrome (1264444621).

The spelling of 1044400220 in words is "one billion, forty-four million, four hundred thousand, two hundred twenty".