451406 has 8 divisors (see below), whose sum is σ = 685920. Its totient is φ = 222768.

The previous prime is 451397. The next prime is 451411. The reversal of 451406 is 604154.

It is a happy number.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 451406.

It is an unprimeable 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, 1271 + ... + 1586.

It is an arithmetic number, because the mean of its divisors is an integer number (85740).

2⁴⁵¹⁴⁰⁶ is an apocalyptic number.

451406 is a deficient number, since it is larger than the sum of its proper divisors (234514).

451406 is a wasteful number, since it uses less digits than its factorization.

451406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 451406 is about 671.8675464703. The cubic root of 451406 is about 76.7106699713.

The spelling of 451406 in words is "four hundred fifty-one thousand, four hundred six".