4079040 has 112 divisors (see below), whose sum is σ = 14825472. Its totient is φ = 930816.

The previous prime is 4079029. The next prime is 4079041. The reversal of 4079040 is 409704.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 4079040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4079041) 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, 6417 + ... + 7023.

Almost surely, 2^4079040 is an apocalyptic number.

4079040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4079040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7412736).

4079040 is an abundant number, since it is smaller than the sum of its proper divisors (10746432).

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

4079040 is a wasteful number, since it uses less digits than its factorization.

4079040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 4079040 is about 2019.6633382819. The cubic root of 4079040 is about 159.7788611676.

The spelling of 4079040 in words is "four million, seventy-nine thousand, forty".