451606212 has 96 divisors (see below), whose sum is σ = 1275120000. Its totient is φ = 137676672.

The previous prime is 451606187. The next prime is 451606213. The reversal of 451606212 is 212606154.

451606212 is a `hidden beast` number, since 4 + 51 + 606 + 2 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (451606213) 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 31 ways as a sum of consecutive naturals, for example, 55714 + ... + 63302.

It is an arithmetic number, because the mean of its divisors is an integer number (13282500).

Almost surely, 2^451606212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451606212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637560000).

451606212 is an abundant number, since it is smaller than the sum of its proper divisors (823513788).

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

451606212 is a wasteful number, since it uses less digits than its factorization.

451606212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7650 (or 7642 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 451606212 is about 21251.0284927577. The cubic root of 451606212 is about 767.2200945030.

The spelling of 451606212 in words is "four hundred fifty-one million, six hundred six thousand, two hundred twelve".