204956436 has 48 divisors (see below), whose sum is σ = 484323840. Its totient is φ = 67455360.

The previous prime is 204956419. The next prime is 204956449. The reversal of 204956436 is 634659402.

It is a super-3 number, since 3×204956436³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204956394 and 204956403.

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, 427645 + ... + 428123.

It is an arithmetic number, because the mean of its divisors is an integer number (10090080).

Almost surely, 2^204956436 is an apocalyptic number.

It is an amenable number.

204956436 is an abundant number, since it is smaller than the sum of its proper divisors (279367404).

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

204956436 is a wasteful number, since it uses less digits than its factorization.

204956436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 204956436 is about 14316.2996615746. The cubic root of 204956436 is about 589.5950836561.

It can be divided in two parts, 2049 and 56436, that added together give a palindrome (58485).

The spelling of 204956436 in words is "two hundred four million, nine hundred fifty-six thousand, four hundred thirty-six".