1044400120 has 32 divisors (see below), whose sum is σ = 2367850320. Its totient is φ = 414568960.

The previous prime is 1044400109. The next prime is 1044400129. The reversal of 1044400120 is 210044401.

1044400120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1044400120² = 2181543221312028800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1044400094 and 1044400103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044400129) 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, 94417 + ... + 104896.

Almost surely, 2^1044400120 is an apocalyptic number.

1044400120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044400120 is an abundant number, since it is smaller than the sum of its proper divisors (1323450200).

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

1044400120 is a wasteful number, since it uses less digits than its factorization.

1044400120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199455 (or 199451 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1044400120 is about 32317.1799512272. The cubic root of 1044400120 is about 1014.5862469501.

Adding to 1044400120 its reverse (210044401), we get a palindrome (1254444521).

The spelling of 1044400120 in words is "one billion, forty-four million, four hundred thousand, one hundred twenty".