1392422401 has 8 divisors (see below), whose sum is σ = 1397816000. Its totient is φ = 1387037520.

The previous prime is 1392422387. The next prime is 1392422407. The reversal of 1392422401 is 1042242931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1392422401 - 2²³ = 1384033793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1392422401.

It is not an unprimeable number, because it can be changed into a prime (1392422407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637930 + ... + 640108.

It is an arithmetic number, because the mean of its divisors is an integer number (174727000).

Almost surely, 2^1392422401 is an apocalyptic number.

It is an amenable number.

1392422401 is a deficient number, since it is larger than the sum of its proper divisors (5393599).

1392422401 is a wasteful number, since it uses less digits than its factorization.

1392422401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4359.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1392422401 is about 37315.1765505672. The cubic root of 1392422401 is about 1116.6669619761. Note that the first 3 decimals are identical.

The spelling of 1392422401 in words is "one billion, three hundred ninety-two million, four hundred twenty-two thousand, four hundred one".