40422331 has 4 divisors (see below), whose sum is σ = 40507200. Its totient is φ = 40337464.

The previous prime is 40422307. The next prime is 40422341. The reversal of 40422331 is 13322404.

40422331 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40422331 - 2⁹ = 40421819 is a prime.

It is a super-2 number, since 2×40422331² = 3267929686947122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40422299 and 40422308.

It is not an unprimeable number, because it can be changed into a prime (40422301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41716 + ... + 42673.

It is an arithmetic number, because the mean of its divisors is an integer number (10126800).

Almost surely, 2^40422331 is an apocalyptic number.

40422331 is a deficient number, since it is larger than the sum of its proper divisors (84869).

40422331 is an equidigital number, since it uses as much as digits as its factorization.

40422331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84868.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 40422331 is about 6357.8558492624. The cubic root of 40422331 is about 343.1946043557.

Adding to 40422331 its reverse (13322404), we get a palindrome (53744735).

The spelling of 40422331 in words is "forty million, four hundred twenty-two thousand, three hundred thirty-one".