206551430 has 8 divisors (see below), whose sum is σ = 371792592. Its totient is φ = 82620568.

The previous prime is 206551379. The next prime is 206551439. The reversal of 206551430 is 34155602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 206551430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206551439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10327562 + ... + 10327581.

It is an arithmetic number, because the mean of its divisors is an integer number (46474074).

Almost surely, 2^206551430 is an apocalyptic number.

206551430 is a deficient number, since it is larger than the sum of its proper divisors (165241162).

206551430 is a wasteful number, since it uses less digits than its factorization.

206551430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20655150.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 206551430 is about 14371.8972303590. The cubic root of 206551430 is about 591.1205650332.

The spelling of 206551430 in words is "two hundred six million, five hundred fifty-one thousand, four hundred thirty".