1297670412 has 18 divisors (see below), whose sum is σ = 3028188828. Its totient is φ = 432515208.

The previous prime is 1297670359. The next prime is 1297670449. The reversal of 1297670412 is 2140767921.

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 5 ways as a sum of consecutive naturals, for example, 119589 + ... + 129987.

Almost surely, 2^1297670412 is an apocalyptic number.

1297670412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1297670412 is an abundant number, since it is smaller than the sum of its proper divisors (1730518416).

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

1297670412 is an frugal number, since it uses more digits than its factorization.

1297670412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20805 (or 10404 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 1297670412 is about 36023.1926958175. The cubic root of 1297670412 is about 1090.7405712695.

The spelling of 1297670412 in words is "one billion, two hundred ninety-seven million, six hundred seventy thousand, four hundred twelve".