1390170260 has 12 divisors (see below), whose sum is σ = 2919357588. Its totient is φ = 556068096.

The previous prime is 1390170247. The next prime is 1390170289. The reversal of 1390170260 is 620710931.

1390170260 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 803949316 + 586220944 = 28354^2 + 24212^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34754237 + ... + 34754276.

It is an arithmetic number, because the mean of its divisors is an integer number (243279799).

Almost surely, 2^1390170260 is an apocalyptic number.

1390170260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1390170260 is an abundant number, since it is smaller than the sum of its proper divisors (1529187328).

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

1390170260 is a wasteful number, since it uses less digits than its factorization.

1390170260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69508522 (or 69508520 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 1390170260 is about 37284.9870591368. The cubic root of 1390170260 is about 1116.0645948232.

The spelling of 1390170260 in words is "one billion, three hundred ninety million, one hundred seventy thousand, two hundred sixty".