1279467660 has 48 divisors (see below), whose sum is σ = 3608682336. Its totient is φ = 338698752.

The previous prime is 1279467653. The next prime is 1279467671. The reversal of 1279467660 is 667649721.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69607 + ... + 86046.

It is an arithmetic number, because the mean of its divisors is an integer number (75180882).

Almost surely, 2^1279467660 is an apocalyptic number.

1279467660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1279467660 is an abundant number, since it is smaller than the sum of its proper divisors (2329214676).

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

1279467660 is a wasteful number, since it uses less digits than its factorization.

1279467660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155802 (or 155800 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 1279467660 is about 35769.6471886431. The cubic root of 1279467660 is about 1085.6165056546.

The spelling of 1279467660 in words is "one billion, two hundred seventy-nine million, four hundred sixty-seven thousand, six hundred sixty".