1279374884 has 6 divisors (see below), whose sum is σ = 2238906054. Its totient is φ = 639687440.

The previous prime is 1279374883. The next prime is 1279374893. The reversal of 1279374884 is 4884739721.

It can be written as a sum of positive squares in only one way, i.e., 1048334884 + 231040000 = 32378^2 + 15200^2 .

It is not an unprimeable number, because it can be changed into a prime (1279374883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159921857 + ... + 159921864.

It is an arithmetic number, because the mean of its divisors is an integer number (373151009).

Almost surely, 2^1279374884 is an apocalyptic number.

It is an amenable number.

1279374884 is a deficient number, since it is larger than the sum of its proper divisors (959531170).

1279374884 is a wasteful number, since it uses less digits than its factorization.

1279374884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319843725 (or 319843723 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 1279374884 is about 35768.3503114136. The cubic root of 1279374884 is about 1085.5902651603.

The spelling of 1279374884 in words is "one billion, two hundred seventy-nine million, three hundred seventy-four thousand, eight hundred eighty-four".