4530090 has 64 divisors (see below), whose sum is σ = 11612160. Its totient is φ = 1128960.

The previous prime is 4530067. The next prime is 4530091. The reversal of 4530090 is 900354.

It is not an unprimeable number, because it can be changed into a prime (4530091) 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, 35607 + ... + 35733.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

Almost surely, 2^4530090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4530090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5806080).

4530090 is an abundant number, since it is smaller than the sum of its proper divisors (7082070).

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

4530090 is a wasteful number, since it uses less digits than its factorization.

4530090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 4530090 is about 2128.4008081186. The cubic root of 4530090 is about 165.4635267362.

It can be divided in two parts, 45 and 30090, that added together give a triangular number (30135 = T₂₄₅).

The spelling of 4530090 in words is "four million, five hundred thirty thousand, ninety".