40112661 has 8 divisors (see below), whose sum is σ = 53530144. Its totient is φ = 26718480.

The previous prime is 40112659. The next prime is 40112717. The reversal of 40112661 is 16621104.

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

It is not a de Polignac number, because 40112661 - 2¹ = 40112659 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 (40112651) 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, 1306 + ... + 9051.

It is an arithmetic number, because the mean of its divisors is an integer number (6691268).

Almost surely, 2^40112661 is an apocalyptic number.

It is an amenable number.

40112661 is a deficient number, since it is larger than the sum of its proper divisors (13417483).

40112661 is a wasteful number, since it uses less digits than its factorization.

40112661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11651.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 40112661 is about 6333.4556918005. The cubic root of 40112661 is about 342.3159676970.

Adding to 40112661 its reverse (16621104), we get a palindrome (56733765).

The spelling of 40112661 in words is "forty million, one hundred twelve thousand, six hundred sixty-one".