206424051 has 24 divisors (see below), whose sum is σ = 284753664. Its totient is φ = 132975360.

The previous prime is 206424007. The next prime is 206424107. The reversal of 206424051 is 150424602.

It is not a de Polignac number, because 206424051 - 2¹⁴ = 206407667 is a prime.

It is a super-2 number, since 2×206424051² = 85221777662501202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206420051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2004066 + ... + 2004168.

It is an arithmetic number, because the mean of its divisors is an integer number (11864736).

Almost surely, 2^206424051 is an apocalyptic number.

206424051 is a deficient number, since it is larger than the sum of its proper divisors (78329613).

206424051 is an equidigital number, since it uses as much as digits as its factorization.

206424051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 206424051 is about 14367.4650164878. The cubic root of 206424051 is about 590.9990265701. Note that the first 3 decimals are identical.

Adding to 206424051 its reverse (150424602), we get a palindrome (356848653).

The spelling of 206424051 in words is "two hundred six million, four hundred twenty-four thousand, fifty-one".