1392339488 has 12 divisors (see below), whose sum is σ = 2741168430. Its totient is φ = 696169728.

The previous prime is 1392339479. The next prime is 1392339499. The reversal of 1392339488 is 8849332931.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 933180304 + 459159184 = 30548^2 + 21428^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21755273 + ... + 21755336.

Almost surely, 2^1392339488 is an apocalyptic number.

It is an amenable number.

1392339488 is a deficient number, since it is larger than the sum of its proper divisors (1348828942).

1392339488 is an equidigital number, since it uses as much as digits as its factorization.

1392339488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43510619 (or 43510611 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 50.

The square root of 1392339488 is about 37314.0655517460. The cubic root of 1392339488 is about 1116.6447972351.

The spelling of 1392339488 in words is "one billion, three hundred ninety-two million, three hundred thirty-nine thousand, four hundred eighty-eight".