1044031990 has 16 divisors (see below), whose sum is σ = 1886749200. Its totient is φ = 415948000.

The previous prime is 1044031921. The next prime is 1044032021. The reversal of 1044031990 is 991304401.

It is a super-2 number, since 2×1044031990² = 2180005592286720200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205465 + ... + 210484.

It is an arithmetic number, because the mean of its divisors is an integer number (117921825).

Almost surely, 2^1044031990 is an apocalyptic number.

1044031990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1044031990 is a deficient number, since it is larger than the sum of its proper divisors (842717210).

1044031990 is a wasteful number, since it uses less digits than its factorization.

1044031990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416207.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1044031990 is about 32311.4838718373. The cubic root of 1044031990 is about 1014.4670258712.

The spelling of 1044031990 in words is "one billion, forty-four million, thirty-one thousand, nine hundred ninety".