1307856550 has 144 divisors (see below), whose sum is σ = 3325380912. Its totient is φ = 376185600.

The previous prime is 1307856547. The next prime is 1307856577. The reversal of 1307856550 is 556587031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 348484 + ... + 352216.

It is an arithmetic number, because the mean of its divisors is an integer number (23092923).

Almost surely, 2^1307856550 is an apocalyptic number.

1307856550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1307856550 is an abundant number, since it is smaller than the sum of its proper divisors (2017524362).

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

1307856550 is a wasteful number, since it uses less digits than its factorization.

1307856550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3783 (or 3771 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 1307856550 is about 36164.2993848906. The cubic root of 1307856550 is about 1093.5870797333.

The spelling of 1307856550 in words is "one billion, three hundred seven million, eight hundred fifty-six thousand, five hundred fifty".