1390799255 has 16 divisors (see below), whose sum is σ = 1732661280. Its totient is φ = 1070444928.

The previous prime is 1390799237. The next prime is 1390799279. The reversal of 1390799255 is 5529970931.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1390799255 - 2⁸ = 1390798999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24089 + ... + 57981.

It is an arithmetic number, because the mean of its divisors is an integer number (108291330).

Almost surely, 2^1390799255 is an apocalyptic number.

1390799255 is a deficient number, since it is larger than the sum of its proper divisors (341862025).

1390799255 is a wasteful number, since it uses less digits than its factorization.

1390799255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34210.

The product of its (nonzero) digits is 765450, while the sum is 50.

The square root of 1390799255 is about 37293.4210686014. The cubic root of 1390799255 is about 1116.2328939209.

The spelling of 1390799255 in words is "one billion, three hundred ninety million, seven hundred ninety-nine thousand, two hundred fifty-five".