4023040 has 72 divisors (see below), whose sum is σ = 11037600. Its totient is φ = 1376256.

The previous prime is 4023031. The next prime is 4023049. The reversal of 4023040 is 403204.

It is an interprime number because it is at equal distance from previous prime (4023031) and next prime (4023049).

It is a self number, because there is not a number n which added to its sum of digits gives 4023040.

It is not an unprimeable number, because it can be changed into a prime (4023049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8736 + ... + 9184.

It is an arithmetic number, because the mean of its divisors is an integer number (153300).

Almost surely, 2^4023040 is an apocalyptic number.

4023040 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 4023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5518800).

4023040 is an abundant number, since it is smaller than the sum of its proper divisors (7014560).

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

4023040 is an equidigital number, since it uses as much as digits as its factorization.

4023040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 4023040 is about 2005.7517294022. The cubic root of 4023040 is about 159.0443028847.

Adding to 4023040 its reverse (403204), we get a palindrome (4426244).

It can be divided in two parts, 40 and 23040, that multiplied together give a square (921600 = 960²).

The spelling of 4023040 in words is "four million, twenty-three thousand, forty".