1307084840 has 16 divisors (see below), whose sum is σ = 2940940980. Its totient is φ = 522833920.

The previous prime is 1307084827. The next prime is 1307084851. The reversal of 1307084840 is 484807031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1256418916 + 50665924 = 35446^2 + 7118^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1307084840.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16338521 + ... + 16338600.

Almost surely, 2^1307084840 is an apocalyptic number.

1307084840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1307084840 is an abundant number, since it is smaller than the sum of its proper divisors (1633856140).

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

1307084840 is a wasteful number, since it uses less digits than its factorization.

1307084840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32677132 (or 32677128 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 1307084840 is about 36153.6283103093. The cubic root of 1307084840 is about 1093.3719444855.

The spelling of 1307084840 in words is "one billion, three hundred seven million, eighty-four thousand, eight hundred forty".