1392407423 has 16 divisors (see below), whose sum is σ = 1618009344. Its totient is φ = 1184204160.

The previous prime is 1392407399. The next prime is 1392407449. The reversal of 1392407423 is 3247042931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1392407423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392407453) 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, 8936 + ... + 53522.

It is an arithmetic number, because the mean of its divisors is an integer number (101125584).

Almost surely, 2^1392407423 is an apocalyptic number.

1392407423 is a deficient number, since it is larger than the sum of its proper divisors (225601921).

1392407423 is a wasteful number, since it uses less digits than its factorization.

1392407423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44782.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 1392407423 is about 37314.9758542063. The cubic root of 1392407423 is about 1116.6629580432.

The spelling of 1392407423 in words is "one billion, three hundred ninety-two million, four hundred seven thousand, four hundred twenty-three".