451093212 has 60 divisors (see below), whose sum is σ = 1241329320. Its totient is φ = 142448544.

The previous prime is 451093211. The next prime is 451093217. The reversal of 451093212 is 212390154.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451093211) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30483 + ... + 42794.

It is an arithmetic number, because the mean of its divisors is an integer number (20688822).

Almost surely, 2^451093212 is an apocalyptic number.

It is an amenable number.

451093212 is an abundant number, since it is smaller than the sum of its proper divisors (790236108).

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

451093212 is a wasteful number, since it uses less digits than its factorization.

451093212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73312 (or 73301 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 451093212 is about 21238.9550590419. The cubic root of 451093212 is about 766.9294777207.

The spelling of 451093212 in words is "four hundred fifty-one million, ninety-three thousand, two hundred twelve".