40421324 has 12 divisors (see below), whose sum is σ = 70940184. Its totient is φ = 20152704.

The previous prime is 40421323. The next prime is 40421347. The reversal of 40421324 is 42312404.

40421324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40421296 and 40421305.

It is not an unprimeable number, because it can be changed into a prime (40421323) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12902 + ... + 15725.

It is an arithmetic number, because the mean of its divisors is an integer number (5911682).

Almost surely, 2^40421324 is an apocalyptic number.

It is an amenable number.

40421324 is a deficient number, since it is larger than the sum of its proper divisors (30518860).

40421324 is a wasteful number, since it uses less digits than its factorization.

40421324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28984 (or 28982 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 40421324 is about 6357.7766554040. The cubic root of 40421324 is about 343.1917544471.

Adding to 40421324 its reverse (42312404), we get a palindrome (82733728).

The spelling of 40421324 in words is "forty million, four hundred twenty-one thousand, three hundred twenty-four".