1304156140 has 48 divisors (see below), whose sum is σ = 3134343744. Its totient is φ = 446515200.

The previous prime is 1304156123. The next prime is 1304156171. The reversal of 1304156140 is 416514031.

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, 100420 + ... + 112660.

It is an arithmetic number, because the mean of its divisors is an integer number (65298828).

Almost surely, 2^1304156140 is an apocalyptic number.

1304156140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304156140 is an abundant number, since it is smaller than the sum of its proper divisors (1830187604).

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

1304156140 is a wasteful number, since it uses less digits than its factorization.

1304156140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13018 (or 13016 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1304156140 is about 36113.1020545176. The cubic root of 1304156140 is about 1092.5547180081.

The spelling of 1304156140 in words is "one billion, three hundred four million, one hundred fifty-six thousand, one hundred forty".