40421322 has 32 divisors (see below), whose sum is σ = 94555200. Its totient is φ = 12764304.

The previous prime is 40421317. The next prime is 40421323. The reversal of 40421322 is 22312404.

40421322 is digitally balanced in base 2, 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 junction number, because it is equal to n+sod(n) for n = 40421295 and 40421304.

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 15 ways as a sum of consecutive naturals, for example, 18673 + ... + 20724.

It is an arithmetic number, because the mean of its divisors is an integer number (2954850).

Almost surely, 2^40421322 is an apocalyptic number.

40421322 is an abundant number, since it is smaller than the sum of its proper divisors (54133878).

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

40421322 is a wasteful number, since it uses less digits than its factorization.

40421322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39427 (or 39421 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40421322 is about 6357.7764981163. The cubic root of 40421322 is about 343.1917487869.

Adding to 40421322 its reverse (22312404), we get a palindrome (62733726).

The spelling of 40421322 in words is "forty million, four hundred twenty-one thousand, three hundred twenty-two".