1392445929 has 16 divisors (see below), whose sum is σ = 2122904960. Its totient is φ = 795277440.

The previous prime is 1392445883. The next prime is 1392445937. The reversal of 1392445929 is 9295442931.

It is not a de Polignac number, because 1392445929 - 2⁷ = 1392445801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1392445949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27999 + ... + 59739.

It is an arithmetic number, because the mean of its divisors is an integer number (132681560).

Almost surely, 2^1392445929 is an apocalyptic number.

It is an amenable number.

1392445929 is a deficient number, since it is larger than the sum of its proper divisors (730459031).

1392445929 is a wasteful number, since it uses less digits than its factorization.

1392445929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33840.

The product of its digits is 699840, while the sum is 48.

The square root of 1392445929 is about 37315.4918097028. The cubic root of 1392445929 is about 1116.6732514450.

The spelling of 1392445929 in words is "one billion, three hundred ninety-two million, four hundred forty-five thousand, nine hundred twenty-nine".