392204245 has 4 divisors (see below), whose sum is σ = 470645100. Its totient is φ = 313763392.

The previous prime is 392204231. The next prime is 392204249. The reversal of 392204245 is 542402293.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542402293 = 347 ⋅1563119.

It can be written as a sum of positive squares in 2 ways, for example, as 43784689 + 348419556 = 6617^2 + 18666^2 .

It is a cyclic number.

It is not a de Polignac number, because 392204245 - 2¹⁷ = 392073173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392204249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39220420 + ... + 39220429.

It is an arithmetic number, because the mean of its divisors is an integer number (117661275).

Almost surely, 2^392204245 is an apocalyptic number.

It is an amenable number.

392204245 is a deficient number, since it is larger than the sum of its proper divisors (78440855).

392204245 is an equidigital number, since it uses as much as digits as its factorization.

392204245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78440854.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 392204245 is about 19804.1471666921. The cubic root of 392204245 is about 731.9882279105.

The spelling of 392204245 in words is "three hundred ninety-two million, two hundred four thousand, two hundred forty-five".