206938458 has 24 divisors (see below), whose sum is σ = 449478900. Its totient is φ = 68808384.

The previous prime is 206938427. The next prime is 206938463. The reversal of 206938458 is 854839602.

It can be written as a sum of positive squares in 2 ways, for example, as 204004089 + 2934369 = 14283^2 + 1713^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6693 + ... + 21416.

Almost surely, 2^206938458 is an apocalyptic number.

206938458 is an abundant number, since it is smaller than the sum of its proper divisors (242540442).

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

206938458 is a wasteful number, since it uses less digits than its factorization.

206938458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28526 (or 28523 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 206938458 is about 14385.3556786059. The cubic root of 206938458 is about 591.4895408785.

The spelling of 206938458 in words is "two hundred six million, nine hundred thirty-eight thousand, four hundred fifty-eight".