451427478 has 8 divisors (see below), whose sum is σ = 902854968. Its totient is φ = 150475824.

The previous prime is 451427477. The next prime is 451427497. The reversal of 451427478 is 874724154.

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

451427478 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451427477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37618951 + ... + 37618962.

It is an arithmetic number, because the mean of its divisors is an integer number (112856871).

Almost surely, 2^451427478 is an apocalyptic number.

451427478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

451427478 is a wasteful number, since it uses less digits than its factorization.

451427478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75237918.

The product of its digits is 250880, while the sum is 42.

The square root of 451427478 is about 21246.8227742409. The cubic root of 451427478 is about 767.1188658903.

The spelling of 451427478 in words is "four hundred fifty-one million, four hundred twenty-seven thousand, four hundred seventy-eight".