40221464 has 16 divisors (see below), whose sum is σ = 75637800. Its totient is φ = 20051392.

The previous prime is 40221443. The next prime is 40221481. The reversal of 40221464 is 46412204.

40221464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4469 + ... + 10020.

Almost surely, 2^40221464 is an apocalyptic number.

It is an amenable number.

40221464 is a deficient number, since it is larger than the sum of its proper divisors (35416336).

40221464 is a wasteful number, since it uses less digits than its factorization.

40221464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14842 (or 14838 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 40221464 is about 6342.0394196189. The cubic root of 40221464 is about 342.6251915935.

Adding to 40221464 its reverse (46412204), we get a palindrome (86633668).

The spelling of 40221464 in words is "forty million, two hundred twenty-one thousand, four hundred sixty-four".