204279442 has 12 divisors (see below), whose sum is σ = 314928810. Its totient is φ = 99377856.

The previous prime is 204279433. The next prime is 204279443. The reversal of 204279442 is 244972402.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 178462881 + 25816561 = 13359^2 + 5081^2 .

It is a junction number, because it is equal to n+sod(n) for n = 204279398 and 204279407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204279443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34567 + ... + 40042.

Almost surely, 2^204279442 is an apocalyptic number.

204279442 is a deficient number, since it is larger than the sum of its proper divisors (110649368).

204279442 is an equidigital number, since it uses as much as digits as its factorization.

204279442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74685 (or 74648 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 204279442 is about 14292.6359360336. The cubic root of 204279442 is about 588.9452014475.

The spelling of 204279442 in words is "two hundred four million, two hundred seventy-nine thousand, four hundred forty-two".