8432040 has 64 divisors (see below), whose sum is σ = 26179200. Its totient is φ = 2170112.

The previous prime is 8432033. The next prime is 8432057. The reversal of 8432040 is 402348.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8431998 and 8432016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2269 + ... + 4691.

It is an arithmetic number, because the mean of its divisors is an integer number (409050).

Almost surely, 2^8432040 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 8432040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13089600).

8432040 is an abundant number, since it is smaller than the sum of its proper divisors (17747160).

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

8432040 is a wasteful number, since it uses less digits than its factorization.

8432040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466 (or 2462 counting only the distinct ones).

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

The square root of 8432040 is about 2903.7975136018. The cubic root of 8432040 is about 203.5373985240.

Adding to 8432040 its reverse (402348), we get a palindrome (8834388).

The spelling of 8432040 in words is "eight million, four hundred thirty-two thousand, forty".