206622429 has 16 divisors (see below), whose sum is σ = 299574912. Its totient is φ = 125915328.

The previous prime is 206622413. The next prime is 206622443. The reversal of 206622429 is 924226602.

It is not a de Polignac number, because 206622429 - 2⁴ = 206622413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206622429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206622469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21702 + ... + 29735.

It is an arithmetic number, because the mean of its divisors is an integer number (18723432).

Almost surely, 2^206622429 is an apocalyptic number.

It is an amenable number.

206622429 is a deficient number, since it is larger than the sum of its proper divisors (92952483).

206622429 is a wasteful number, since it uses less digits than its factorization.

206622429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51556.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 206622429 is about 14374.3670817188. The cubic root of 206622429 is about 591.1882869256.

The spelling of 206622429 in words is "two hundred six million, six hundred twenty-two thousand, four hundred twenty-nine".