40421341 has 16 divisors (see below), whose sum is σ = 43642240. Its totient is φ = 37324800.

The previous prime is 40421323. The next prime is 40421347. The reversal of 40421341 is 14312404.

It is a 6-Lehmer number, since φ(40421341) divides (40421341-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 40421341 - 2⁵ = 40421309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40421347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209341 + ... + 209533.

It is an arithmetic number, because the mean of its divisors is an integer number (2727640).

Almost surely, 2^40421341 is an apocalyptic number.

It is an amenable number.

40421341 is a deficient number, since it is larger than the sum of its proper divisors (3220899).

40421341 is a wasteful number, since it uses less digits than its factorization.

40421341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 40421341 is about 6357.7779923492. Note that the first 3 decimals coincide. The cubic root of 40421341 is about 343.1918025592.

Adding to 40421341 its reverse (14312404), we get a palindrome (54733745).

The spelling of 40421341 in words is "forty million, four hundred twenty-one thousand, three hundred forty-one".