206952990 has 32 divisors (see below), whose sum is σ = 513816480. Its totient is φ = 53284224.

The previous prime is 206952983. The next prime is 206953003. The reversal of 206952990 is 99259602.

206952990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×206952990³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118069 + ... + 119808.

It is an arithmetic number, because the mean of its divisors is an integer number (16056765).

Almost surely, 2^206952990 is an apocalyptic number.

206952990 is an abundant number, since it is smaller than the sum of its proper divisors (306863490).

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

206952990 is a wasteful number, since it uses less digits than its factorization.

206952990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237916.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 206952990 is about 14385.8607667390. The cubic root of 206952990 is about 591.5033860975.

The spelling of 206952990 in words is "two hundred six million, nine hundred fifty-two thousand, nine hundred ninety".