206694380 has 24 divisors (see below), whose sum is σ = 434367360. Its totient is φ = 82618880.

The previous prime is 206694377. The next prime is 206694431. The reversal of 206694380 is 83496602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35045 + ... + 40515.

It is an arithmetic number, because the mean of its divisors is an integer number (18098640).

Almost surely, 2^206694380 is an apocalyptic number.

206694380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206694380 is an abundant number, since it is smaller than the sum of its proper divisors (227672980).

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

206694380 is a wasteful number, since it uses less digits than its factorization.

206694380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7369 (or 7367 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 206694380 is about 14376.8696175489. The cubic root of 206694380 is about 591.2569010513.

The spelling of 206694380 in words is "two hundred six million, six hundred ninety-four thousand, three hundred eighty".