4528478 has 4 divisors (see below), whose sum is σ = 6792720. Its totient is φ = 2264238.

The previous prime is 4528429. The next prime is 4528487. The reversal of 4528478 is 8748254.

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

It is a super-2 number, since 2×4528478² = 41014225992968, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 1132118 + ... + 1132121.

It is an arithmetic number, because the mean of its divisors is an integer number (1698180).

Almost surely, 2^4528478 is an apocalyptic number.

4528478 is a deficient number, since it is larger than the sum of its proper divisors (2264242).

4528478 is a wasteful number, since it uses less digits than its factorization.

4528478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264241.

The product of its digits is 71680, while the sum is 38.

The square root of 4528478 is about 2128.0220863515. The cubic root of 4528478 is about 165.4438980718.

The spelling of 4528478 in words is "four million, five hundred twenty-eight thousand, four hundred seventy-eight".