206893380 has 96 divisors (see below), whose sum is σ = 612799488. Its totient is φ = 52070400.

The previous prime is 206893373. The next prime is 206893403. The reversal of 206893380 is 83398602.

206893380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 74904 + ... + 77616.

It is an arithmetic number, because the mean of its divisors is an integer number (6383328).

Almost surely, 2^206893380 is an apocalyptic number.

206893380 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 206893380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306399744).

206893380 is an abundant number, since it is smaller than the sum of its proper divisors (405906108).

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

206893380 is a wasteful number, since it uses less digits than its factorization.

206893380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797 (or 2795 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 206893380 is about 14383.7887915528. The cubic root of 206893380 is about 591.4465891365.

The spelling of 206893380 in words is "two hundred six million, eight hundred ninety-three thousand, three hundred eighty".