206994740 has 24 divisors (see below), whose sum is σ = 457568160. Its totient is φ = 78439968.

The previous prime is 206994727. The next prime is 206994743. The reversal of 206994740 is 47499602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206994743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271982 + ... + 272741.

It is an arithmetic number, because the mean of its divisors is an integer number (19065340).

Almost surely, 2^206994740 is an apocalyptic number.

206994740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206994740 is an abundant number, since it is smaller than the sum of its proper divisors (250573420).

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

206994740 is a wasteful number, since it uses less digits than its factorization.

206994740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544751 (or 544749 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 206994740 is about 14387.3117711406. The cubic root of 206994740 is about 591.5431593908.

The spelling of 206994740 in words is "two hundred six million, nine hundred ninety-four thousand, seven hundred forty".