40581442904 has 16 divisors (see below), whose sum is σ = 80094953400. Its totient is φ = 19222788672.

The previous prime is 40581442793. The next prime is 40581442907. The reversal of 40581442904 is 40924418504.

It is a happy number.

It is a super-3 number, since 3×40581442904³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40581442907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133491437 + ... + 133491740.

Almost surely, 2^40581442904 is an apocalyptic number.

It is an amenable number.

40581442904 is a deficient number, since it is larger than the sum of its proper divisors (39513510496).

40581442904 is a wasteful number, since it uses less digits than its factorization.

40581442904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266983202 (or 266983198 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 40581442904 in words is "forty billion, five hundred eighty-one million, four hundred forty-two thousand, nine hundred four".