4528290 has 64 divisors (see below), whose sum is σ = 12410496. Its totient is φ = 1047552.

The previous prime is 4528253. The next prime is 4528297. The reversal of 4528290 is 928254.

It is a super-3 number, since 3×4528290³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4528297) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6289 + ... + 6971.

It is an arithmetic number, because the mean of its divisors is an integer number (193914).

Almost surely, 2^4528290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4528290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6205248).

4528290 is an abundant number, since it is smaller than the sum of its proper divisors (7882206).

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

4528290 is a wasteful number, since it uses less digits than its factorization.

4528290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 4528290 is about 2127.9779134192. The cubic root of 4528290 is about 165.4416085694.

The spelling of 4528290 in words is "four million, five hundred twenty-eight thousand, two hundred ninety".