1392372148 has 24 divisors (see below), whose sum is σ = 2582225352. Its totient is φ = 654664704.

The previous prime is 1392372139. The next prime is 1392372151. The reversal of 1392372148 is 8412732931.

It can be written as a sum of positive squares in 4 ways, for example, as 941998864 + 450373284 = 30692^2 + 21222^2 .

It is a super-2 number, since 2×1392372148² = 3877400397052267808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1392372148.

It is a congruent 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, 75840 + ... + 92392.

It is an arithmetic number, because the mean of its divisors is an integer number (107592723).

Almost surely, 2^1392372148 is an apocalyptic number.

It is an amenable number.

1392372148 is a deficient number, since it is larger than the sum of its proper divisors (1189853204).

1392372148 is a wasteful number, since it uses less digits than its factorization.

1392372148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17811 (or 17809 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 1392372148 is about 37314.5031857588. The cubic root of 1392372148 is about 1116.6535281838.

The spelling of 1392372148 in words is "one billion, three hundred ninety-two million, three hundred seventy-two thousand, one hundred forty-eight".