1044394560 has 588 divisors, whose sum is σ = 4209304764. Its totient is φ = 246343680.

The previous prime is 1044394537. The next prime is 1044394601. The reversal of 1044394560 is 654934401.

1044394560 is a `hidden beast` number, since 1 + 0 + 4 + 4 + 3 + 94 + 560 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 683090496 + 361304064 = 26136^2 + 19008^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 28226862 + ... + 28226898.

Almost surely, 2^1044394560 is an apocalyptic number.

1044394560 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 1044394560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2104652382).

1044394560 is an abundant number, since it is smaller than the sum of its proper divisors (3164910204).

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

1044394560 is an equidigital number, since it uses as much as digits as its factorization.

1044394560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1044394560 is about 32317.0939287554. The cubic root of 1044394560 is about 1014.5844465196.

The spelling of 1044394560 in words is "one billion, forty-four million, three hundred ninety-four thousand, five hundred sixty".