451945230 has 32 divisors (see below), whose sum is σ = 1183275648. Its totient is φ = 109562400.

The previous prime is 451945223. The next prime is 451945243. The reversal of 451945230 is 32549154.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 451945191 and 451945200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684436 + ... + 685095.

It is an arithmetic number, because the mean of its divisors is an integer number (36977364).

Almost surely, 2^451945230 is an apocalyptic number.

451945230 is an abundant number, since it is smaller than the sum of its proper divisors (731330418).

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

451945230 is a wasteful number, since it uses less digits than its factorization.

451945230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369552.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 451945230 is about 21259.0035043978. The cubic root of 451945230 is about 767.4120289485.

The spelling of 451945230 in words is "four hundred fifty-one million, nine hundred forty-five thousand, two hundred thirty".