206104440 has 64 divisors (see below), whose sum is σ = 619407360. Its totient is φ = 54864000.

The previous prime is 206104391. The next prime is 206104441. The reversal of 206104440 is 44401602.

206104440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206104441) 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, 88977 + ... + 91263.

It is an arithmetic number, because the mean of its divisors is an integer number (9678240).

Almost surely, 2^206104440 is an apocalyptic number.

206104440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206104440 is an abundant number, since it is smaller than the sum of its proper divisors (413302920).

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

206104440 is a wasteful number, since it uses less digits than its factorization.

206104440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052 (or 3048 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 206104440 is about 14356.3379731741. The cubic root of 206104440 is about 590.6938499844.

The spelling of 206104440 in words is "two hundred six million, one hundred four thousand, four hundred forty".