40574221 has 2 divisors, whose sum is σ = 40574222. Its totient is φ = 40574220.

The previous prime is 40574213. The next prime is 40574249. The reversal of 40574221 is 12247504.

40574221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34644996 + 5929225 = 5886^2 + 2435^2 .

It is a cyclic number.

It is not a de Polignac number, because 40574221 - 2³ = 40574213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40574201) 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 as a sum of consecutive naturals, namely, 20287110 + 20287111.

It is an arithmetic number, because the mean of its divisors is an integer number (20287111).

Almost surely, 2^40574221 is an apocalyptic number.

It is an amenable number.

40574221 is a deficient number, since it is larger than the sum of its proper divisors (1).

40574221 is an equidigital number, since it uses as much as digits as its factorization.

40574221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 40574221 is about 6369.7897139545. The cubic root of 40574221 is about 343.6239270567.

The spelling of 40574221 in words is "forty million, five hundred seventy-four thousand, two hundred twenty-one".