1304278899 has 16 divisors (see below), whose sum is σ = 2168152320. Its totient is φ = 677547360.

The previous prime is 1304278867. The next prime is 1304278901. The reversal of 1304278899 is 9988724031.

It is not a de Polignac number, because 1304278899 - 2⁵ = 1304278867 is a prime.

It is a super-2 number, since 2×1304278899² = 3402286892753304402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1304278399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2822884 + ... + 2823345.

It is an arithmetic number, because the mean of its divisors is an integer number (135509520).

Almost surely, 2^1304278899 is an apocalyptic number.

1304278899 is a deficient number, since it is larger than the sum of its proper divisors (863873421).

1304278899 is a wasteful number, since it uses less digits than its factorization.

1304278899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5646250.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 1304278899 is about 36114.8016608149. The cubic root of 1304278899 is about 1092.5889973178.

The spelling of 1304278899 in words is "one billion, three hundred four million, two hundred seventy-eight thousand, eight hundred ninety-nine".