40221364 has 6 divisors (see below), whose sum is σ = 70387394. Its totient is φ = 20110680.

The previous prime is 40221361. The next prime is 40221367. The reversal of 40221364 is 46312204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40221361) and next prime (40221367).

It can be written as a sum of positive squares in only one way, i.e., 40220964 + 400 = 6342^2 + 20^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027667 + ... + 5027674.

Almost surely, 2^40221364 is an apocalyptic number.

It is an amenable number.

40221364 is a deficient number, since it is larger than the sum of its proper divisors (30166030).

40221364 is a wasteful number, since it uses less digits than its factorization.

40221364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055345 (or 10055343 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 40221364 is about 6342.0315357147. The cubic root of 40221364 is about 342.6249076444.

Adding to 40221364 its reverse (46312204), we get a palindrome (86533568).

The spelling of 40221364 in words is "forty million, two hundred twenty-one thousand, three hundred sixty-four".