4428507 has 4 divisors (see below), whose sum is σ = 5904680. Its totient is φ = 2952336.

The previous prime is 4428497. The next prime is 4428509. The reversal of 4428507 is 7058244.

4428507 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4428507 - 2⁴ = 4428491 is a prime.

It is a super-2 number, since 2×4428507² = 39223348498098, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

4428507 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4428509) 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, 738082 + ... + 738087.

It is an arithmetic number, because the mean of its divisors is an integer number (1476170).

Almost surely, 2^4428507 is an apocalyptic number.

4428507 is a deficient number, since it is larger than the sum of its proper divisors (1476173).

4428507 is a wasteful number, since it uses less digits than its factorization.

4428507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476172.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 4428507 is about 2104.4018152435. The cubic root of 4428507 is about 164.2173773213.

The spelling of 4428507 in words is "four million, four hundred twenty-eight thousand, five hundred seven".