1310428385 has 32 divisors (see below), whose sum is σ = 1932042240. Its totient is φ = 833153472.

The previous prime is 1310428369. The next prime is 1310428417. The reversal of 1310428385 is 5838240131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1310428385 - 2⁴ = 1310428369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10292 + ... + 52218.

It is an arithmetic number, because the mean of its divisors is an integer number (60376320).

Almost surely, 2^1310428385 is an apocalyptic number.

It is an amenable number.

1310428385 is a deficient number, since it is larger than the sum of its proper divisors (621613855).

1310428385 is a wasteful number, since it uses less digits than its factorization.

1310428385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42005.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 1310428385 is about 36199.8395714677. The cubic root of 1310428385 is about 1094.3034386170.

The spelling of 1310428385 in words is "one billion, three hundred ten million, four hundred twenty-eight thousand, three hundred eighty-five".