1307978082 has 12 divisors (see below), whose sum is σ = 2833952550. Its totient is φ = 435992688.

The previous prime is 1307978059. The next prime is 1307978093. The reversal of 1307978082 is 2808797031.

It can be written as a sum of positive squares in only one way, i.e., 962798841 + 345179241 = 31029^2 + 18579^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36332707 + ... + 36332742.

Almost surely, 2^1307978082 is an apocalyptic number.

1307978082 is an abundant number, since it is smaller than the sum of its proper divisors (1525974468).

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

1307978082 is a wasteful number, since it uses less digits than its factorization.

1307978082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72665457 (or 72665454 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 1307978082 is about 36165.9796217384. The cubic root of 1307978082 is about 1093.6209523851.

The spelling of 1307978082 in words is "one billion, three hundred seven million, nine hundred seventy-eight thousand, eighty-two".