3040440 has 64 divisors (see below), whose sum is σ = 9828000. Its totient is φ = 748032.

The previous prime is 3040409. The next prime is 3040469. The reversal of 3040440 is 440403.

3040440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586 + ... + 2534.

Almost surely, 2^3040440 is an apocalyptic number.

3040440 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 3040440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4914000).

3040440 is an abundant number, since it is smaller than the sum of its proper divisors (6787560).

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

3040440 is a wasteful number, since it uses less digits than its factorization.

3040440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976 (or 1972 counting only the distinct ones).

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

The square root of 3040440 is about 1743.6857515046. The cubic root of 3040440 is about 144.8701175423.

Adding to 3040440 its reverse (440403), we get a palindrome (3480843).

It can be divided in two parts, 30 and 40440, that added together give a triangular number (40470 = T₂₈₄).

The spelling of 3040440 in words is "three million, forty thousand, four hundred forty".