40746221 has 8 divisors (see below), whose sum is σ = 41140224. Its totient is φ = 40354480.

The previous prime is 40746193. The next prime is 40746239. The reversal of 40746221 is 12264704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40746221 - 2⁶ = 40746157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40746281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72875 + ... + 73431.

It is an arithmetic number, because the mean of its divisors is an integer number (5142528).

Almost surely, 2^40746221 is an apocalyptic number.

It is an amenable number.

40746221 is a deficient number, since it is larger than the sum of its proper divisors (394003).

40746221 is a wasteful number, since it uses less digits than its factorization.

40746221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 40746221 is about 6383.2766664151. The cubic root of 40746221 is about 344.1087997525.

The spelling of 40746221 in words is "forty million, seven hundred forty-six thousand, two hundred twenty-one".