4540290 has 16 divisors (see below), whose sum is σ = 10896768. Its totient is φ = 1210736.

The previous prime is 4540231. The next prime is 4540303. The reversal of 4540290 is 920454.

It is a super-2 number, since 2×4540290² = 41228466568200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4540290.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75642 + ... + 75701.

It is an arithmetic number, because the mean of its divisors is an integer number (681048).

Almost surely, 2^4540290 is an apocalyptic number.

4540290 is an abundant number, since it is smaller than the sum of its proper divisors (6356478).

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

4540290 is a wasteful number, since it uses less digits than its factorization.

4540290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151353.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 4540290 is about 2130.7956260515. The cubic root of 4540290 is about 165.5876201392.

The spelling of 4540290 in words is "four million, five hundred forty thousand, two hundred ninety".