1275079904 has 48 divisors (see below), whose sum is σ = 2908267488. Its totient is φ = 538970112.

The previous prime is 1275079891. The next prime is 1275079913. The reversal of 1275079904 is 4099705721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22637 + ... + 55340.

It is an arithmetic number, because the mean of its divisors is an integer number (60588906).

Almost surely, 2^1275079904 is an apocalyptic number.

1275079904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1275079904 is an abundant number, since it is smaller than the sum of its proper divisors (1633187584).

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

1275079904 is an equidigital number, since it uses as much as digits as its factorization.

1275079904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78067 (or 78059 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 1275079904 is about 35708.2610049831. The cubic root of 1275079904 is about 1084.3740941827.

The spelling of 1275079904 in words is "one billion, two hundred seventy-five million, seventy-nine thousand, nine hundred four".