204101240 has 64 divisors (see below), whose sum is σ = 531532800. Its totient is φ = 69084288.

The previous prime is 204101231. The next prime is 204101267. The reversal of 204101240 is 42101402.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 15 ways as a sum of consecutive naturals, for example, 17507 + ... + 26733.

It is an arithmetic number, because the mean of its divisors is an integer number (8305200).

Almost surely, 2^204101240 is an apocalyptic number.

204101240 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 204101240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265766400).

204101240 is an abundant number, since it is smaller than the sum of its proper divisors (327431560).

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

204101240 is a wasteful number, since it uses less digits than its factorization.

204101240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324 (or 9320 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 204101240 is about 14286.4005263747. The cubic root of 204101240 is about 588.7738973025.

Adding to 204101240 its reverse (42101402), we get a palindrome (246202642).

The spelling of 204101240 in words is "two hundred four million, one hundred one thousand, two hundred forty".