4390340 has 12 divisors (see below), whose sum is σ = 9219756. Its totient is φ = 1756128.

The previous prime is 4390327. The next prime is 4390357. The reversal of 4390340 is 430934.

4390340 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2715904 + 1674436 = 1648^2 + 1294^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109739 + ... + 109778.

It is an arithmetic number, because the mean of its divisors is an integer number (768313).

Almost surely, 2^4390340 is an apocalyptic number.

It is an amenable number.

4390340 is an abundant number, since it is smaller than the sum of its proper divisors (4829416).

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

4390340 is a wasteful number, since it uses less digits than its factorization.

4390340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219526 (or 219524 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 4390340 is about 2095.3138189780. The cubic root of 4390340 is about 163.7442474136.

The spelling of 4390340 in words is "four million, three hundred ninety thousand, three hundred forty".