204064380 has 192 divisors, whose sum is σ = 701366400. Its totient is φ = 48936960.

The previous prime is 204064373. The next prime is 204064391. The reversal of 204064380 is 83460402.

204064380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 287466 + ... + 288174.

It is an arithmetic number, because the mean of its divisors is an integer number (3652950).

Almost surely, 2^204064380 is an apocalyptic number.

204064380 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 204064380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350683200).

204064380 is an abundant number, since it is smaller than the sum of its proper divisors (497302020).

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

204064380 is a wasteful number, since it uses less digits than its factorization.

204064380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 204064380 is about 14285.1104300947. The cubic root of 204064380 is about 588.7384516377.

The spelling of 204064380 in words is "two hundred four million, sixty-four thousand, three hundred eighty".