1044400431 has 8 divisors (see below), whose sum is σ = 1392691504. Its totient is φ = 696188160.

The previous prime is 1044400411. The next prime is 1044400439. The reversal of 1044400431 is 1340044401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1044400431 - 2¹⁵ = 1044367663 is a prime.

It is a super-2 number, since 2×1044400431² = 2181544520545971522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1044400398 and 1044400407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044400439) 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, 27135 + ... + 53151.

It is an arithmetic number, because the mean of its divisors is an integer number (174086438).

Almost surely, 2^1044400431 is an apocalyptic number.

1044400431 is a deficient number, since it is larger than the sum of its proper divisors (348291073).

1044400431 is a wasteful number, since it uses less digits than its factorization.

1044400431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39401.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1044400431 is about 32317.1847629090. The cubic root of 1044400431 is about 1014.5863476574.

Adding to 1044400431 its reverse (1340044401), we get a palindrome (2384444832).

The spelling of 1044400431 in words is "one billion, forty-four million, four hundred thousand, four hundred thirty-one".