451244406 has 24 divisors (see below), whose sum is σ = 943440120. Its totient is φ = 143874016.

The previous prime is 451244371. The next prime is 451244419. The reversal of 451244406 is 604442154.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 67911 + ... + 74258.

It is an arithmetic number, because the mean of its divisors is an integer number (39310005).

Almost surely, 2^451244406 is an apocalyptic number.

451244406 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

451244406 is an abundant number, since it is smaller than the sum of its proper divisors (492195714).

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

451244406 is a wasteful number, since it uses less digits than its factorization.

451244406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142220 (or 142197 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 451244406 is about 21242.5141167424. The cubic root of 451244406 is about 767.0151526838.

The spelling of 451244406 in words is "four hundred fifty-one million, two hundred forty-four thousand, four hundred six".