40322261 has 16 divisors (see below), whose sum is σ = 47625600. Its totient is φ = 33421248.

The previous prime is 40322213. The next prime is 40322263. The reversal of 40322261 is 16222304.

40322261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-40322261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40322263) 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, 32195 + ... + 33423.

It is an arithmetic number, because the mean of its divisors is an integer number (2976600).

Almost surely, 2^40322261 is an apocalyptic number.

It is an amenable number.

40322261 is a deficient number, since it is larger than the sum of its proper divisors (7303339).

40322261 is a wasteful number, since it uses less digits than its factorization.

40322261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40322261 is about 6349.9811810745. The cubic root of 40322261 is about 342.9111647929.

Adding to 40322261 its reverse (16222304), we get a palindrome (56544565).

The spelling of 40322261 in words is "forty million, three hundred twenty-two thousand, two hundred sixty-one".