4455478 has 4 divisors (see below), whose sum is σ = 6683220. Its totient is φ = 2227738.

The previous prime is 4455469. The next prime is 4455487. The reversal of 4455478 is 8745544.

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

It is an interprime number because it is at equal distance from previous prime (4455469) and next prime (4455487).

It is an Ulam number.

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, 1113868 + ... + 1113871.

It is an arithmetic number, because the mean of its divisors is an integer number (1670805).

Almost surely, 2^4455478 is an apocalyptic number.

4455478 is a deficient number, since it is larger than the sum of its proper divisors (2227742).

4455478 is a wasteful number, since it uses less digits than its factorization.

4455478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227741.

The product of its digits is 89600, while the sum is 37.

The square root of 4455478 is about 2110.8003221527. The cubic root of 4455478 is about 164.5500812952.

The spelling of 4455478 in words is "four million, four hundred fifty-five thousand, four hundred seventy-eight".