206104920 has 128 divisors (see below), whose sum is σ = 712419840. Its totient is φ = 46725120.

The previous prime is 206104903. The next prime is 206104949. The reversal of 206104920 is 29401602.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109104 + ... + 110976.

It is an arithmetic number, because the mean of its divisors is an integer number (5565780).

Almost surely, 2^206104920 is an apocalyptic number.

206104920 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 206104920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356209920).

206104920 is an abundant number, since it is smaller than the sum of its proper divisors (506314920).

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

206104920 is a wasteful number, since it uses less digits than its factorization.

206104920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025 (or 2021 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 206104920 is about 14356.3546905195. The cubic root of 206104920 is about 590.6943085429.

The spelling of 206104920 in words is "two hundred six million, one hundred four thousand, nine hundred twenty".