4006340 has 48 divisors (see below), whose sum is σ = 9549120. Its totient is φ = 1399680.

The previous prime is 4006337. The next prime is 4006349. The reversal of 4006340 is 436004.

It is not an unprimeable number, because it can be changed into a prime (4006349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4535 + ... + 5345.

It is an arithmetic number, because the mean of its divisors is an integer number (198940).

Almost surely, 2^4006340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4006340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4774560).

4006340 is an abundant number, since it is smaller than the sum of its proper divisors (5542780).

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

4006340 is a wasteful number, since it uses less digits than its factorization.

4006340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 4006340 is about 2001.5843724410. The cubic root of 4006340 is about 158.8239286146.

The spelling of 4006340 in words is "four million, six thousand, three hundred forty".