4390940 has 12 divisors (see below), whose sum is σ = 9221016. Its totient is φ = 1756368.

The previous prime is 4390937. The next prime is 4391003. The reversal of 4390940 is 490934.

It is a happy number.

It is a congruent number.

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, 109754 + ... + 109793.

It is an arithmetic number, because the mean of its divisors is an integer number (768418).

Almost surely, 2^4390940 is an apocalyptic number.

It is an amenable number.

4390940 is an abundant number, since it is smaller than the sum of its proper divisors (4830076).

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

4390940 is a wasteful number, since it uses less digits than its factorization.

4390940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219556 (or 219554 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 4390940 is about 2095.4569907302. The cubic root of 4390940 is about 163.7517063707.

The spelling of 4390940 in words is "four million, three hundred ninety thousand, nine hundred forty".