1307868240 has 160 divisors (see below), whose sum is σ = 4655702016. Its totient is φ = 297515520.

The previous prime is 1307868239. The next prime is 1307868241. The reversal of 1307868240 is 428687031.

It is an interprime number because it is at equal distance from previous prime (1307868239) and next prime (1307868241).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307868241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372895 + ... + 376385.

Almost surely, 2^1307868240 is an apocalyptic number.

1307868240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1307868240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2327851008).

1307868240 is an abundant number, since it is smaller than the sum of its proper divisors (3347833776).

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

1307868240 is a wasteful number, since it uses less digits than its factorization.

1307868240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737 (or 3731 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1307868240 is about 36164.4610080117. The cubic root of 1307868240 is about 1093.5903379894.

It can be divided in two parts, 13078 and 68240, that added together give a palindrome (81318).

The spelling of 1307868240 in words is "one billion, three hundred seven million, eight hundred sixty-eight thousand, two hundred forty".