392430641 has 2 divisors, whose sum is σ = 392430642. Its totient is φ = 392430640.

The previous prime is 392430631. The next prime is 392430673. The reversal of 392430641 is 146034293.

It is an a-pointer prime, because the next prime (392430673) can be obtained adding 392430641 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348606241 + 43824400 = 18671^2 + 6620^2 .

It is a cyclic number.

It is not a de Polignac number, because 392430641 - 2¹⁰ = 392429617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 392430598 and 392430607.

It is not a weakly prime, because it can be changed into another prime (392430631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196215320 + 196215321.

It is an arithmetic number, because the mean of its divisors is an integer number (196215321).

Almost surely, 2^392430641 is an apocalyptic number.

It is an amenable number.

392430641 is a deficient number, since it is larger than the sum of its proper divisors (1).

392430641 is an equidigital number, since it uses as much as digits as its factorization.

392430641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 392430641 is about 19809.8622155733. The cubic root of 392430641 is about 732.1290451272.

The spelling of 392430641 in words is "three hundred ninety-two million, four hundred thirty thousand, six hundred forty-one".