4509478 has 8 divisors (see below), whose sum is σ = 6850080. Its totient is φ = 2226120.

The previous prime is 4509469. The next prime is 4509493. The reversal of 4509478 is 8749054.

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

It is an alternating number because its digits alternate between even and odd.

It is a nialpdrome in base 7.

It is a congruent number.

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, 14113 + ... + 14428.

It is an arithmetic number, because the mean of its divisors is an integer number (856260).

Almost surely, 2^4509478 is an apocalyptic number.

4509478 is a deficient number, since it is larger than the sum of its proper divisors (2340602).

4509478 is a wasteful number, since it uses less digits than its factorization.

4509478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28622.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 4509478 is about 2123.5531545031. The cubic root of 4509478 is about 165.2121910383.

The spelling of 4509478 in words is "four million, five hundred nine thousand, four hundred seventy-eight".