1273991048 has 32 divisors (see below), whose sum is σ = 2621907360. Its totient is φ = 575527680.

The previous prime is 1273991027. The next prime is 1273991053. The reversal of 1273991048 is 8401993721.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 30065 + ... + 58752.

It is an arithmetic number, because the mean of its divisors is an integer number (81934605).

Almost surely, 2^1273991048 is an apocalyptic number.

It is an amenable number.

1273991048 is an abundant number, since it is smaller than the sum of its proper divisors (1347916312).

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

1273991048 is a wasteful number, since it uses less digits than its factorization.

1273991048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88997 (or 88993 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1273991048 is about 35693.0111926691. The cubic root of 1273991048 is about 1084.0653387630.

The spelling of 1273991048 in words is "one billion, two hundred seventy-three million, nine hundred ninety-one thousand, forty-eight".