451666230 has 16 divisors (see below), whose sum is σ = 1083999024. Its totient is φ = 120444320.

The previous prime is 451666211. The next prime is 451666231. The reversal of 451666230 is 32666154.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 451666191 and 451666200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451666231) 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 7 ways as a sum of consecutive naturals, for example, 7527741 + ... + 7527800.

It is an arithmetic number, because the mean of its divisors is an integer number (67749939).

Almost surely, 2^451666230 is an apocalyptic number.

451666230 is an abundant number, since it is smaller than the sum of its proper divisors (632332794).

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

451666230 is a wasteful number, since it uses less digits than its factorization.

451666230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15055551.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 451666230 is about 21252.4405657327. The cubic root of 451666230 is about 767.2540805840.

The spelling of 451666230 in words is "four hundred fifty-one million, six hundred sixty-six thousand, two hundred thirty".