40221333 has 16 divisors (see below), whose sum is σ = 60119040. Its totient is φ = 26574912.

The previous prime is 40221301. The next prime is 40221343. The reversal of 40221333 is 33312204.

It is not a de Polignac number, because 40221333 - 2⁵ = 40221301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221343) 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, 3541 + ... + 9642.

It is an arithmetic number, because the mean of its divisors is an integer number (3757440).

Almost surely, 2^40221333 is an apocalyptic number.

It is an amenable number.

40221333 is a deficient number, since it is larger than the sum of its proper divisors (19897707).

40221333 is a wasteful number, since it uses less digits than its factorization.

40221333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13305 (or 13299 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 40221333 is about 6342.0290917024. The cubic root of 40221333 is about 342.6248196201.

Adding to 40221333 its reverse (33312204), we get a palindrome (73533537).

The spelling of 40221333 in words is "forty million, two hundred twenty-one thousand, three hundred thirty-three".