1044916813 has 8 divisors (see below), whose sum is σ = 1069694208. Its totient is φ = 1020161184.

The previous prime is 1044916759. The next prime is 1044916823. The reversal of 1044916813 is 3186194401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1044916813 is a prime.

It is a super-2 number, since 2×1044916813² = 2183702292180153938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044916823) 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, 132345 + ... + 140017.

It is an arithmetic number, because the mean of its divisors is an integer number (133711776).

Almost surely, 2^1044916813 is an apocalyptic number.

It is an amenable number.

1044916813 is a deficient number, since it is larger than the sum of its proper divisors (24777395).

1044916813 is an equidigital number, since it uses as much as digits as its factorization.

1044916813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10883.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1044916813 is about 32325.1730544478. The cubic root of 1044916813 is about 1014.7535337894.

The spelling of 1044916813 in words is "one billion, forty-four million, nine hundred sixteen thousand, eight hundred thirteen".