204656742 has 24 divisors (see below), whose sum is σ = 443973816. Its totient is φ = 68134176.

The previous prime is 204656717. The next prime is 204656747. The reversal of 204656742 is 247656402.

204656742 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 204656697 and 204656706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204656747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8793 + ... + 22059.

It is an arithmetic number, because the mean of its divisors is an integer number (18498909).

Almost surely, 2^204656742 is an apocalyptic number.

204656742 is an abundant number, since it is smaller than the sum of its proper divisors (239317074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204656742 is a wasteful number, since it uses less digits than its factorization.

204656742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14132 (or 14129 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 204656742 is about 14305.8289518643. The cubic root of 204656742 is about 589.3075684048.

The spelling of 204656742 in words is "two hundred four million, six hundred fifty-six thousand, seven hundred forty-two".