1267379970 has 16 divisors (see below), whose sum is σ = 3041712000. Its totient is φ = 337967984.

The previous prime is 1267379963. The next prime is 1267379989. The reversal of 1267379970 is 799737621.

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, 21122970 + ... + 21123029.

It is an arithmetic number, because the mean of its divisors is an integer number (190107000).

Almost surely, 2^1267379970 is an apocalyptic number.

1267379970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1267379970 is an abundant number, since it is smaller than the sum of its proper divisors (1774332030).

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

1267379970 is a wasteful number, since it uses less digits than its factorization.

1267379970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42246009.

The product of its (nonzero) digits is 1000188, while the sum is 51.

The square root of 1267379970 is about 35600.2804764232. The cubic root of 1267379970 is about 1082.1869181189.

The spelling of 1267379970 in words is "one billion, two hundred sixty-seven million, three hundred seventy-nine thousand, nine hundred seventy".