4390290 has 24 divisors (see below), whose sum is σ = 11414988. Its totient is φ = 1170720.

The previous prime is 4390289. The next prime is 4390291. The reversal of 4390290 is 920934.

4390290 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4390289) and next prime (4390291).

It can be written as a sum of positive squares in 2 ways, for example, as 3814209 + 576081 = 1953^2 + 759^2 .

It is not an unprimeable number, because it can be changed into a prime (4390291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24301 + ... + 24480.

Almost surely, 2^4390290 is an apocalyptic number.

4390290 is an abundant number, since it is smaller than the sum of its proper divisors (7024698).

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

4390290 is a wasteful number, since it uses less digits than its factorization.

4390290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48794 (or 48791 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 4390290 is about 2095.3018875570. The cubic root of 4390290 is about 163.7436258032.

The spelling of 4390290 in words is "four million, three hundred ninety thousand, two hundred ninety".