1267980832 has 24 divisors (see below), whose sum is σ = 2497548816. Its totient is φ = 633682752.

The previous prime is 1267980809. The next prime is 1267980871. The reversal of 1267980832 is 2380897621.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66663 + ... + 83545.

It is an arithmetic number, because the mean of its divisors is an integer number (104064534).

Almost surely, 2^1267980832 is an apocalyptic number.

It is an amenable number.

1267980832 is a deficient number, since it is larger than the sum of its proper divisors (1229567984).

1267980832 is a wasteful number, since it uses less digits than its factorization.

1267980832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19240 (or 19232 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 1267980832 is about 35608.7184829783. The cubic root of 1267980832 is about 1082.3579118957.

The spelling of 1267980832 in words is "one billion, two hundred sixty-seven million, nine hundred eighty thousand, eight hundred thirty-two".