1279466960 has 40 divisors (see below), whose sum is σ = 2988142080. Its totient is φ = 509484672.

The previous prime is 1279466939. The next prime is 1279466963. The reversal of 1279466960 is 696649721.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1279466899 and 1279466908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279466963) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18020 + ... + 53699.

It is an arithmetic number, because the mean of its divisors is an integer number (74703552).

Almost surely, 2^1279466960 is an apocalyptic number.

1279466960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1279466960 is an abundant number, since it is smaller than the sum of its proper divisors (1708675120).

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

1279466960 is a wasteful number, since it uses less digits than its factorization.

1279466960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71955 (or 71949 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 1279466960 is about 35769.6374038094. The cubic root of 1279466960 is about 1085.6163076734.

The spelling of 1279466960 in words is "one billion, two hundred seventy-nine million, four hundred sixty-six thousand, nine hundred sixty".