1392425136 has 30 divisors (see below), whose sum is σ = 3896856860. Its totient is φ = 464141664.

The previous prime is 1392425113. The next prime is 1392425143. The reversal of 1392425136 is 6315242931.

1392425136 is a `hidden beast` number, since 13 + 92 + 42 + 513 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1392425136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4834666 + ... + 4834953.

Almost surely, 2^1392425136 is an apocalyptic number.

1392425136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1392425136 is an abundant number, since it is smaller than the sum of its proper divisors (2504431724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1392425136 is a wasteful number, since it uses less digits than its factorization.

1392425136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9669633 (or 9669624 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 1392425136 is about 37315.2131978366. The cubic root of 1392425136 is about 1116.6676930958.

It can be divided in two parts, 13924 and 25136, that added together give a triangular number (39060 = T₂₇₉).

The spelling of 1392425136 in words is "one billion, three hundred ninety-two million, four hundred twenty-five thousand, one hundred thirty-six".