1267902490 has 32 divisors (see below), whose sum is σ = 2426163840. Its totient is φ = 475704000.

The previous prime is 1267902481. The next prime is 1267902529. The reversal of 1267902490 is 942097621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13846 + ... + 52225.

It is an arithmetic number, because the mean of its divisors is an integer number (75817620).

Almost surely, 2^1267902490 is an apocalyptic number.

1267902490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1267902490 is a deficient number, since it is larger than the sum of its proper divisors (1158261350).

1267902490 is a wasteful number, since it uses less digits than its factorization.

1267902490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66198.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1267902490 is about 35607.6184263986. The cubic root of 1267902490 is about 1082.3356203311.

The spelling of 1267902490 in words is "one billion, two hundred sixty-seven million, nine hundred two thousand, four hundred ninety".