204379240 has 64 divisors (see below), whose sum is σ = 512341200. Its totient is φ = 72855552.

The previous prime is 204379213. The next prime is 204379243. The reversal of 204379240 is 42973402.

It can be written as a sum of positive squares in 8 ways, for example, as 81036004 + 123343236 = 9002^2 + 11106^2 .

It is not an unprimeable number, because it can be changed into a prime (204379243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8304 + ... + 21856.

Almost surely, 2^204379240 is an apocalyptic number.

204379240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204379240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256170600).

204379240 is an abundant number, since it is smaller than the sum of its proper divisors (307961960).

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

204379240 is a wasteful number, since it uses less digits than its factorization.

204379240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13606 (or 13602 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 204379240 is about 14296.1267481790. The cubic root of 204379240 is about 589.0410929444.

The spelling of 204379240 in words is "two hundred four million, three hundred seventy-nine thousand, two hundred forty".