4539090 has 16 divisors (see below), whose sum is σ = 10893888. Its totient is φ = 1210416.

The previous prime is 4539083. The next prime is 4539091. The reversal of 4539090 is 909354.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 151303 = 4539090 / (4 + 5 + 3 + 9 + 0 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (4539091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75622 + ... + 75681.

It is an arithmetic number, because the mean of its divisors is an integer number (680868).

Almost surely, 2^4539090 is an apocalyptic number.

4539090 is an abundant number, since it is smaller than the sum of its proper divisors (6354798).

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

4539090 is a wasteful number, since it uses less digits than its factorization.

4539090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151313.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 4539090 is about 2130.5140224838. The cubic root of 4539090 is about 165.5730305680.

The spelling of 4539090 in words is "four million, five hundred thirty-nine thousand, ninety".