4428522 has 36 divisors (see below), whose sum is σ = 11163906. Its totient is φ = 1265040.

The previous prime is 4428511. The next prime is 4428553. The reversal of 4428522 is 2258244.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2893401 + 1535121 = 1701^2 + 1239^2 .

It is a super-2 number, since 2×4428522² = 39223614208968, which contains 22 as substring.

It is an Ulam 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 17 ways as a sum of consecutive naturals, for example, 1629 + ... + 3392.

Almost surely, 2^4428522 is an apocalyptic number.

4428522 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4428522 is an abundant number, since it is smaller than the sum of its proper divisors (6735384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4428522 is a wasteful number, since it uses less digits than its factorization.

4428522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5043 (or 5033 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 4428522 is about 2104.4053791986. The cubic root of 4428522 is about 164.2175627305.

It can be divided in two parts, 4428 and 522, that added together give a triangular number (4950 = T₉₉).

The spelling of 4428522 in words is "four million, four hundred twenty-eight thousand, five hundred twenty-two".