206373730 has 16 divisors (see below), whose sum is σ = 374400000. Its totient is φ = 81898992.

The previous prime is 206373707. The next prime is 206373731. The reversal of 206373730 is 37373602.

It is a super-2 number, since 2×206373730² = 85180232868225800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206373692 and 206373701.

It is not an unprimeable number, because it can be changed into a prime (206373731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79980 + ... + 82519.

It is an arithmetic number, because the mean of its divisors is an integer number (23400000).

Almost surely, 2^206373730 is an apocalyptic number.

206373730 is a deficient number, since it is larger than the sum of its proper divisors (168026270).

206373730 is a wasteful number, since it uses less digits than its factorization.

206373730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162633.

The product of its (nonzero) digits is 15876, while the sum is 31.

The square root of 206373730 is about 14365.7136961586. The cubic root of 206373730 is about 590.9509990934.

The spelling of 206373730 in words is "two hundred six million, three hundred seventy-three thousand, seven hundred thirty".