1044340920 has 288 divisors, whose sum is σ = 4007268720. Its totient is φ = 235146240.

The previous prime is 1044340919. The next prime is 1044340933. The reversal of 1044340920 is 290434401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1287315 + ... + 1288125.

Almost surely, 2^1044340920 is an apocalyptic number.

1044340920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1044340920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2003634360).

1044340920 is an abundant number, since it is smaller than the sum of its proper divisors (2962927800).

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

1044340920 is a wasteful number, since it uses less digits than its factorization.

1044340920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1044340920 is about 32316.2640167455. The cubic root of 1044340920 is about 1014.5670765703.

The spelling of 1044340920 in words is "one billion, forty-four million, three hundred forty thousand, nine hundred twenty".