1390464171 has 8 divisors (see below), whose sum is σ = 2059946960. Its totient is φ = 926976096.

The previous prime is 1390464139. The next prime is 1390464191. The reversal of 1390464171 is 1714640931.

1390464171 is a `hidden beast` number, since 1 + 3 + 9 + 0 + 4 + 641 + 7 + 1 = 666.

It is not a de Polignac number, because 1390464171 - 2⁵ = 1390464139 is a prime.

It is a super-2 number, since 2×1390464171² = 3866781221669434482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1390464191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25749310 + ... + 25749363.

It is an arithmetic number, because the mean of its divisors is an integer number (257493370).

Almost surely, 2^1390464171 is an apocalyptic number.

1390464171 is a deficient number, since it is larger than the sum of its proper divisors (669482789).

1390464171 is an equidigital number, since it uses as much as digits as its factorization.

1390464171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51498682 (or 51498676 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1390464171 is about 37288.9282629576. The cubic root of 1390464171 is about 1116.1432423952.

The spelling of 1390464171 in words is "one billion, three hundred ninety million, four hundred sixty-four thousand, one hundred seventy-one".