1392279339 has 16 divisors (see below), whose sum is σ = 2027744640. Its totient is φ = 842717760.

The previous prime is 1392279307. The next prime is 1392279341. The reversal of 1392279339 is 9339722931.

It is not a de Polignac number, because 1392279339 - 2⁵ = 1392279307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1392279139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 834 + ... + 52775.

It is an arithmetic number, because the mean of its divisors is an integer number (126734040).

Almost surely, 2^1392279339 is an apocalyptic number.

1392279339 is a deficient number, since it is larger than the sum of its proper divisors (635465301).

1392279339 is a wasteful number, since it uses less digits than its factorization.

1392279339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54410.

The product of its digits is 551124, while the sum is 48.

The square root of 1392279339 is about 37313.2595601081. The cubic root of 1392279339 is about 1116.6287173361.

The spelling of 1392279339 in words is "one billion, three hundred ninety-two million, two hundred seventy-nine thousand, three hundred thirty-nine".