1399374755 has 16 divisors (see below), whose sum is σ = 1693021824. Its totient is φ = 1110345600.

The previous prime is 1399374733. The next prime is 1399374761. The reversal of 1399374755 is 5574739931.

It is a de Polignac number, because none of the positive numbers 2^k-1399374755 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1399374697 and 1399374706.

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, 549014 + ... + 551556.

It is an arithmetic number, because the mean of its divisors is an integer number (105813864).

Almost surely, 2^1399374755 is an apocalyptic number.

1399374755 is a deficient number, since it is larger than the sum of its proper divisors (293647069).

1399374755 is a wasteful number, since it uses less digits than its factorization.

1399374755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406.

The product of its digits is 3572100, while the sum is 53.

The square root of 1399374755 is about 37408.2177469069. The cubic root of 1399374755 is about 1118.5223804576.

The spelling of 1399374755 in words is "one billion, three hundred ninety-nine million, three hundred seventy-four thousand, seven hundred fifty-five".