1392738275 has 24 divisors (see below), whose sum is σ = 1802820624. Its totient is φ = 1066262400.

The previous prime is 1392738229. The next prime is 1392738299. The reversal of 1392738275 is 5728372931.

It is not a de Polignac number, because 1392738275 - 2³⁰ = 318996451 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44084 + ... + 68766.

It is an arithmetic number, because the mean of its divisors is an integer number (75117526).

Almost surely, 2^1392738275 is an apocalyptic number.

1392738275 is a deficient number, since it is larger than the sum of its proper divisors (410082349).

1392738275 is a wasteful number, since it uses less digits than its factorization.

1392738275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24791 (or 24786 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The square root of 1392738275 is about 37319.4088243638. The cubic root of 1392738275 is about 1116.7513950214.

The spelling of 1392738275 in words is "one billion, three hundred ninety-two million, seven hundred thirty-eight thousand, two hundred seventy-five".