204067540 has 12 divisors (see below), whose sum is σ = 428541876. Its totient is φ = 81627008.

The previous prime is 204067499. The next prime is 204067553. The reversal of 204067540 is 45760402.

204067540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 133541136 + 70526404 = 11556^2 + 8398^2 .

It is a junction number, because it is equal to n+sod(n) for n = 204067499 and 204067508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5101669 + ... + 5101708.

It is an arithmetic number, because the mean of its divisors is an integer number (35711823).

Almost surely, 2^204067540 is an apocalyptic number.

204067540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204067540 is an abundant number, since it is smaller than the sum of its proper divisors (224474336).

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

204067540 is a wasteful number, since it uses less digits than its factorization.

204067540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10203386 (or 10203384 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 204067540 is about 14285.2210343418. The cubic root of 204067540 is about 588.7414905543.

The spelling of 204067540 in words is "two hundred four million, sixty-seven thousand, five hundred forty".