40846221 has 16 divisors (see below), whose sum is σ = 65168320. Its totient is φ = 25135920.

The previous prime is 40846163. The next prime is 40846237. The reversal of 40846221 is 12264804.

It is not a de Polignac number, because 40846221 - 2⁹ = 40845709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40846621) 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, 57835 + ... + 58536.

It is an arithmetic number, because the mean of its divisors is an integer number (4073020).

Almost surely, 2^40846221 is an apocalyptic number.

It is an amenable number.

40846221 is a deficient number, since it is larger than the sum of its proper divisors (24322099).

40846221 is a wasteful number, since it uses less digits than its factorization.

40846221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116393 (or 116387 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 40846221 is about 6391.1048340643. The cubic root of 40846221 is about 344.3900754707.

The spelling of 40846221 in words is "forty million, eight hundred forty-six thousand, two hundred twenty-one".