1392432241 has 2 divisors, whose sum is σ = 1392432242. Its totient is φ = 1392432240.

The previous prime is 1392432203. The next prime is 1392432263. The reversal of 1392432241 is 1422342931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1334367841 + 58064400 = 36529^2 + 7620^2 .

It is a cyclic number.

It is not a de Polignac number, because 1392432241 - 2¹⁵ = 1392399473 is a prime.

It is not a weakly prime, because it can be changed into another prime (1392432281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696216120 + 696216121.

It is an arithmetic number, because the mean of its divisors is an integer number (696216121).

Almost surely, 2^1392432241 is an apocalyptic number.

It is an amenable number.

1392432241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392432241 is an equidigital number, since it uses as much as digits as its factorization.

1392432241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The square root of 1392432241 is about 37315.3084001727. The cubic root of 1392432241 is about 1116.6695923985.

The spelling of 1392432241 in words is "one billion, three hundred ninety-two million, four hundred thirty-two thousand, two hundred forty-one".