40215241 has 8 divisors (see below), whose sum is σ = 44103168. Its totient is φ = 36366000.

The previous prime is 40215239. The next prime is 40215269. The reversal of 40215241 is 14251204.

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

It is not a de Polignac number, because 40215241 - 2¹ = 40215239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40215841) 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, 7470 + ... + 11671.

It is an arithmetic number, because the mean of its divisors is an integer number (5512896).

Almost surely, 2^40215241 is an apocalyptic number.

It is an amenable number.

40215241 is a deficient number, since it is larger than the sum of its proper divisors (3887927).

40215241 is a wasteful number, since it uses less digits than its factorization.

40215241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19343.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 40215241 is about 6341.5487855886. The cubic root of 40215241 is about 342.6075205432.

Adding to 40215241 its reverse (14251204), we get a palindrome (54466445).

The spelling of 40215241 in words is "forty million, two hundred fifteen thousand, two hundred forty-one".