1272904760 has 32 divisors (see below), whose sum is σ = 2924976960. Its totient is φ = 498327936.

The previous prime is 1272904757. The next prime is 1272904769. The reversal of 1272904760 is 674092721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272904769) 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 7 ways as a sum of consecutive naturals, for example, 336659 + ... + 340418.

It is an arithmetic number, because the mean of its divisors is an integer number (91405530).

Almost surely, 2^1272904760 is an apocalyptic number.

1272904760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1272904760 is an abundant number, since it is smaller than the sum of its proper divisors (1652072200).

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

1272904760 is a wasteful number, since it uses less digits than its factorization.

1272904760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677135 (or 677131 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 1272904760 is about 35677.7908508921. The cubic root of 1272904760 is about 1083.7571361711.

The spelling of 1272904760 in words is "one billion, two hundred seventy-two million, nine hundred four thousand, seven hundred sixty".