40122661 has 8 divisors (see below), whose sum is σ = 42292800. Its totient is φ = 37958400.

The previous prime is 40122659. The next prime is 40122673. The reversal of 40122661 is 16622104.

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 40122661 - 2¹ = 40122659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40122611) 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, 24261 + ... + 25861.

It is an arithmetic number, because the mean of its divisors is an integer number (5286600).

Almost surely, 2^40122661 is an apocalyptic number.

It is an amenable number.

40122661 is a deficient number, since it is larger than the sum of its proper divisors (2170139).

40122661 is a wasteful number, since it uses less digits than its factorization.

40122661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 40122661 is about 6334.2451010361. The cubic root of 40122661 is about 342.3444115447.

Adding to 40122661 its reverse (16622104), we get a palindrome (56744765).

The spelling of 40122661 in words is "forty million, one hundred twenty-two thousand, six hundred sixty-one".