40325221 has 8 divisors (see below), whose sum is σ = 40863680. Its totient is φ = 39789792.

The previous prime is 40325213. The next prime is 40325237. The reversal of 40325221 is 12252304.

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

It is a cyclic number.

It is not a de Polignac number, because 40325221 - 2³ = 40325213 is a prime.

It is a super-2 number, since 2×40325221² = 3252246897397682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40325251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38521 + ... + 39553.

It is an arithmetic number, because the mean of its divisors is an integer number (5107960).

Almost surely, 2^40325221 is an apocalyptic number.

It is an amenable number.

40325221 is a deficient number, since it is larger than the sum of its proper divisors (538459).

40325221 is a wasteful number, since it uses less digits than its factorization.

40325221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40325221 is about 6350.2142483541. The cubic root of 40325221 is about 342.9195554617.

Adding to 40325221 its reverse (12252304), we get a palindrome (52577525).

The spelling of 40325221 in words is "forty million, three hundred twenty-five thousand, two hundred twenty-one".