40244161 has 8 divisors (see below), whose sum is σ = 40803840. Its totient is φ = 39688608.

The previous prime is 40244137. The next prime is 40244177. The reversal of 40244161 is 16144204.

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 40244161 - 2¹¹ = 40242113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40244461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22000 + ... + 23758.

It is an arithmetic number, because the mean of its divisors is an integer number (5100480).

Almost surely, 2^40244161 is an apocalyptic number.

It is an amenable number.

40244161 is a deficient number, since it is larger than the sum of its proper divisors (559679).

40244161 is a wasteful number, since it uses less digits than its factorization.

40244161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 40244161 is about 6343.8285758680. The cubic root of 40244161 is about 342.6896273523.

Adding to 40244161 its reverse (16144204), we get a palindrome (56388365).

The spelling of 40244161 in words is "forty million, two hundred forty-four thousand, one hundred sixty-one".