8043420 has 96 divisors (see below), whose sum is σ = 28094976. Its totient is φ = 1670400.

The previous prime is 8043401. The next prime is 8043433. The reversal of 8043420 is 243408.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3750 + ... + 5490.

It is an arithmetic number, because the mean of its divisors is an integer number (292656).

Almost surely, 2^8043420 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 8043420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14047488).

8043420 is an abundant number, since it is smaller than the sum of its proper divisors (20051556).

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

8043420 is a wasteful number, since it uses less digits than its factorization.

8043420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771 (or 1769 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 8043420 is about 2836.0923821343. The cubic root of 8043420 is about 200.3611806833.

Adding to 8043420 its reverse (243408), we get a palindrome (8286828).

It can be divided in two parts, 804 and 3420, that added together give a palindrome (4224).

The spelling of 8043420 in words is "eight million, forty-three thousand, four hundred twenty".