4079940 has 48 divisors (see below), whose sum is σ = 11648448. Its totient is φ = 1066624.

The previous prime is 4079893. The next prime is 4079963. The reversal of 4079940 is 499704.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2539 + ... + 3821.

It is an arithmetic number, because the mean of its divisors is an integer number (242676).

Almost surely, 2^4079940 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 4079940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5824224).

4079940 is an abundant number, since it is smaller than the sum of its proper divisors (7568508).

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

4079940 is a wasteful number, since it uses less digits than its factorization.

4079940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348 (or 1346 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 4079940 is about 2019.8861354047. The cubic root of 4079940 is about 159.7906115141.

The spelling of 4079940 in words is "four million, seventy-nine thousand, nine hundred forty".