451946 has 8 divisors (see below), whose sum is σ = 739584. Its totient is φ = 205420.

The previous prime is 451939. The next prime is 451961. The reversal of 451946 is 649154.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 451946.

It is an unprimeable number.

451946 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10250 + ... + 10293.

It is an arithmetic number, because the mean of its divisors is an integer number (92448).

2⁴⁵¹⁹⁴⁶ is an apocalyptic number.

451946 is a deficient number, since it is larger than the sum of its proper divisors (287638).

451946 is a wasteful number, since it uses less digits than its factorization.

451946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20556.

The product of its digits is 4320, while the sum is 29.

The square root of 451946 is about 672.2692912814. The cubic root of 451946 is about 76.7412464773.

It can be divided in two parts, 45 and 1946, that added together give a palindrome (1991).

The spelling of 451946 in words is "four hundred fifty-one thousand, nine hundred forty-six".