40989180242 has 8 divisors (see below), whose sum is σ = 61506111996. Its totient is φ = 20487142912.

The previous prime is 40989180191. The next prime is 40989180269. The reversal of 40989180242 is 24208198904.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40654253641 + 334926601 = 201629^2 + 18301^2 .

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

It is a super-2 number, since 2×40989180242² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3716723 + ... + 3727734.

Almost surely, 2^40989180242 is an apocalyptic number.

40989180242 is a deficient number, since it is larger than the sum of its proper divisors (20516931754).

40989180242 is a wasteful number, since it uses less digits than its factorization.

40989180242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7447212.

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 40989180242 in words is "forty billion, nine hundred eighty-nine million, one hundred eighty thousand, two hundred forty-two".