4019040 has 72 divisors (see below), whose sum is σ = 13719888. Its totient is φ = 1071360.

The previous prime is 4019009. The next prime is 4019047. The reversal of 4019040 is 409104.

4019040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4019047) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 45 + ... + 2835.

It is an arithmetic number, because the mean of its divisors is an integer number (190554).

Almost surely, 2^4019040 is an apocalyptic number.

4019040 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 4019040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6859944).

4019040 is an abundant number, since it is smaller than the sum of its proper divisors (9700848).

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

4019040 is a wasteful number, since it uses less digits than its factorization.

4019040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812 (or 2801 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 4019040 is about 2004.7543490413. The cubic root of 4019040 is about 158.9915742539.

The spelling of 4019040 in words is "four million, nineteen thousand, forty".