1392372146 has 16 divisors (see below), whose sum is σ = 2288472480. Its totient is φ = 630106080.

The previous prime is 1392372139. The next prime is 1392372151. The reversal of 1392372146 is 6412732931.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134411 + ... + 144398.

It is an arithmetic number, because the mean of its divisors is an integer number (143029530).

Almost surely, 2^1392372146 is an apocalyptic number.

1392372146 is a deficient number, since it is larger than the sum of its proper divisors (896100334).

1392372146 is a wasteful number, since it uses less digits than its factorization.

1392372146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279049.

The product of its digits is 54432, while the sum is 38.

The square root of 1392372146 is about 37314.5031589595. The cubic root of 1392372146 is about 1116.6535276492.

The spelling of 1392372146 in words is "one billion, three hundred ninety-two million, three hundred seventy-two thousand, one hundred forty-six".