8042040 has 96 divisors (see below), whose sum is σ = 26535600. Its totient is φ = 2112000.

The previous prime is 8042033. The next prime is 8042053. The reversal of 8042040 is 402408.

It is a happy number.

8042040 is digitally balanced in base 5, 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 (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31915 + ... + 32165.

Almost surely, 2^8042040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8042040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13267800).

8042040 is an abundant number, since it is smaller than the sum of its proper divisors (18493560).

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

8042040 is a wasteful number, since it uses less digits than its factorization.

8042040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 8042040 is about 2835.8490792001. The cubic root of 8042040 is about 200.3497214514.

Adding to 8042040 its reverse (402408), we get a palindrome (8444448).

The spelling of 8042040 in words is "eight million, forty-two thousand, forty".