440254478 has 4 divisors (see below), whose sum is σ = 660381720. Its totient is φ = 220127238.

The previous prime is 440254429. The next prime is 440254487. The reversal of 440254478 is 874452044.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110063618 + ... + 110063621.

It is an arithmetic number, because the mean of its divisors is an integer number (165095430).

Almost surely, 2^440254478 is an apocalyptic number.

440254478 is a deficient number, since it is larger than the sum of its proper divisors (220127242).

440254478 is a wasteful number, since it uses less digits than its factorization.

440254478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220127241.

The product of its (nonzero) digits is 143360, while the sum is 38.

The square root of 440254478 is about 20982.2419679118. The cubic root of 440254478 is about 760.7370953680.

The spelling of 440254478 in words is "four hundred forty million, two hundred fifty-four thousand, four hundred seventy-eight".