3440040 has 64 divisors (see below), whose sum is σ = 10454400. Its totient is φ = 905472.

The previous prime is 3440029. The next prime is 3440051. The reversal of 3440040 is 400443.

It is an interprime number because it is at equal distance from previous prime (3440029) and next prime (3440051).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 12949 + ... + 13211.

It is an arithmetic number, because the mean of its divisors is an integer number (163350).

Almost surely, 2^3440040 is an apocalyptic number.

3440040 is a gapful number since it is divisible by the number (30) 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 3440040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5227200).

3440040 is an abundant number, since it is smaller than the sum of its proper divisors (7014360).

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

3440040 is a wasteful number, since it uses less digits than its factorization.

3440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 3440040 is about 1854.7344823451. The cubic root of 3440040 is about 150.9574313875.

Adding to 3440040 its reverse (400443), we get a palindrome (3840483).

The spelling of 3440040 in words is "three million, four hundred forty thousand, forty".