1304277120 has 128 divisors (see below), whose sum is σ = 4619376000. Its totient is φ = 347802624.

The previous prime is 1304277113. The next prime is 1304277133. The reversal of 1304277120 is 217724031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1304277120² = 3402277611510988800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20460 + ... + 55019.

It is an arithmetic number, because the mean of its divisors is an integer number (36088875).

Almost surely, 2^1304277120 is an apocalyptic number.

1304277120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304277120 is an abundant number, since it is smaller than the sum of its proper divisors (3315098880).

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

1304277120 is an equidigital number, since it uses as much as digits as its factorization.

1304277120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75507 (or 75489 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 1304277120 is about 36114.7770310160. Note that the first 3 decimals coincide. The cubic root of 1304277120 is about 1092.5885005640.

The spelling of 1304277120 in words is "one billion, three hundred four million, two hundred seventy-seven thousand, one hundred twenty".