40021241 has 8 divisors (see below), whose sum is σ = 43155840. Its totient is φ = 36894672.

The previous prime is 40021231. The next prime is 40021243. The reversal of 40021241 is 14212004.

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 40021241 - 2¹⁴ = 40004857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40021243) 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, 12026 + ... + 14988.

It is an arithmetic number, because the mean of its divisors is an integer number (5394480).

Almost surely, 2^40021241 is an apocalyptic number.

It is an amenable number.

40021241 is a deficient number, since it is larger than the sum of its proper divisors (3134599).

40021241 is a wasteful number, since it uses less digits than its factorization.

40021241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 40021241 is about 6326.2343459597. The cubic root of 40021241 is about 342.0557146216.

Adding to 40021241 its reverse (14212004), we get a palindrome (54233245).

The spelling of 40021241 in words is "forty million, twenty-one thousand, two hundred forty-one".