206623450 has 48 divisors (see below), whose sum is σ = 421606944. Its totient is φ = 74715200.

The previous prime is 206623433. The next prime is 206623481. The reversal of 206623450 is 54326602.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 107397 + ... + 109303.

It is an arithmetic number, because the mean of its divisors is an integer number (8783478).

Almost surely, 2^206623450 is an apocalyptic number.

206623450 is an abundant number, since it is smaller than the sum of its proper divisors (214983494).

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

206623450 is a wasteful number, since it uses less digits than its factorization.

206623450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127 (or 2122 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 206623450 is about 14374.4025962820. The cubic root of 206623450 is about 591.1892606861.

The spelling of 206623450 in words is "two hundred six million, six hundred twenty-three thousand, four hundred fifty".