451906 has 24 divisors (see below), whose sum is σ = 843264. Its totient is φ = 177840.

The previous prime is 451903. The next prime is 451909. The reversal of 451906 is 609154.

It is an interprime number because it is at equal distance from previous prime (451903) and next prime (451909).

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (451901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2271 + ... + 2461.

It is an arithmetic number, because the mean of its divisors is an integer number (35136).

2⁴⁵¹⁹⁰⁶ is an apocalyptic number.

451906 is a deficient number, since it is larger than the sum of its proper divisors (391358).

451906 is a wasteful number, since it uses less digits than its factorization.

451906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 451906 is about 672.2395406401. The cubic root of 451906 is about 76.7389823865.

The spelling of 451906 in words is "four hundred fifty-one thousand, nine hundred six".