40527221 has 8 divisors (see below), whose sum is σ = 46355520. Its totient is φ = 34708608.

The previous prime is 40527197. The next prime is 40527281. The reversal of 40527221 is 12272504.

It is a happy number.

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 40527221 - 2¹⁴ = 40510837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40527281) 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, 13925 + ... + 16581.

It is an arithmetic number, because the mean of its divisors is an integer number (5794440).

Almost surely, 2^40527221 is an apocalyptic number.

It is an amenable number.

40527221 is a deficient number, since it is larger than the sum of its proper divisors (5828299).

40527221 is a wasteful number, since it uses less digits than its factorization.

40527221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4843.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 40527221 is about 6366.0993551782. The cubic root of 40527221 is about 343.4911944643.

Adding to 40527221 its reverse (12272504), we get a palindrome (52799725).

The spelling of 40527221 in words is "forty million, five hundred twenty-seven thousand, two hundred twenty-one".