1392140992 has 56 divisors (see below), whose sum is σ = 3020884992. Its totient is φ = 631276800.

The previous prime is 1392140977. The next prime is 1392141011. The reversal of 1392140992 is 2990412931.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323817 + ... + 328087.

Almost surely, 2^1392140992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1392140992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1510442496).

1392140992 is an abundant number, since it is smaller than the sum of its proper divisors (1628744000).

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

1392140992 is a wasteful number, since it uses less digits than its factorization.

1392140992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757 (or 4747 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 1392140992 is about 37311.4056556437. The cubic root of 1392140992 is about 1116.5917306611.

The spelling of 1392140992 in words is "one billion, three hundred ninety-two million, one hundred forty thousand, nine hundred ninety-two".