1392238692 has 120 divisors (see below), whose sum is σ = 4011229376. Its totient is φ = 418364352.

The previous prime is 1392238669. The next prime is 1392238697. The reversal of 1392238692 is 2968322931.

It is a happy number.

1392238692 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392238697) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 177273 + ... + 184959.

Almost surely, 2^1392238692 is an apocalyptic number.

1392238692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1392238692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2005614688).

1392238692 is an abundant number, since it is smaller than the sum of its proper divisors (2618990684).

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

1392238692 is a wasteful number, since it uses less digits than its factorization.

1392238692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7759 (or 7748 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 1392238692 is about 37312.7148838033. The cubic root of 1392238692 is about 1116.6178507310.

The spelling of 1392238692 in words is "one billion, three hundred ninety-two million, two hundred thirty-eight thousand, six hundred ninety-two".