1304944263 has 112 divisors (see below), whose sum is σ = 2416142080. Its totient is φ = 687802752.

The previous prime is 1304944247. The next prime is 1304944273. The reversal of 1304944263 is 3624494031.

It is a happy number.

1304944263 is a `hidden beast` number, since 1 + 304 + 94 + 4 + 263 = 666.

It is not a de Polignac number, because 1304944263 - 2⁴ = 1304944247 is a prime.

It is a super-2 number, since 2×1304944263² = 3405759059073226338, 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 (1304944213) by changing a digit.

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 111 ways as a sum of consecutive naturals, for example, 4168995 + ... + 4169307.

Almost surely, 2^1304944263 is an apocalyptic number.

1304944263 is a deficient number, since it is larger than the sum of its proper divisors (1111197817).

1304944263 is an equidigital number, since it uses as much as digits as its factorization.

1304944263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 1304944263 is about 36124.0122771544. The cubic root of 1304944263 is about 1092.7747566169.

The spelling of 1304944263 in words is "one billion, three hundred four million, nine hundred forty-four thousand, two hundred sixty-three".