1044990408 has 512 divisors, whose sum is σ = 3782246400. Its totient is φ = 232243200.

The previous prime is 1044990403. The next prime is 1044990413. The reversal of 1044990408 is 8040994401.

It is an interprime number because it is at equal distance from previous prime (1044990403) and next prime (1044990413).

It is not an unprimeable number, because it can be changed into a prime (1044990403) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 28242966 + ... + 28243002.

It is an arithmetic number, because the mean of its divisors is an integer number (7387200).

Almost surely, 2^1044990408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1044990408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1891123200).

1044990408 is an abundant number, since it is smaller than the sum of its proper divisors (2737255992).

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

1044990408 is a wasteful number, since it uses less digits than its factorization.

1044990408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 1044990408 is about 32326.3113887124. The cubic root of 1044990408 is about 1014.7773567490. Note that the first 3 decimals are identical.

The spelling of 1044990408 in words is "one billion, forty-four million, nine hundred ninety thousand, four hundred eight".