40040223540 has 48 divisors (see below), whose sum is σ = 112123116672. Its totient is φ = 10676393856.

The previous prime is 40040223521. The next prime is 40040223541. The reversal of 40040223540 is 4532204004.

It is a super-2 number, since 2×40040223540² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40040223540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040223541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796842 + ... + 845598.

It is an arithmetic number, because the mean of its divisors is an integer number (2335898264).

Almost surely, 2^40040223540 is an apocalyptic number.

It is an amenable number.

40040223540 is an abundant number, since it is smaller than the sum of its proper divisors (72082893132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40040223540 is a wasteful number, since it uses less digits than its factorization.

40040223540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62456 (or 62454 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 40040223540 its reverse (4532204004), we get a palindrome (44572427544).

The spelling of 40040223540 in words is "forty billion, forty million, two hundred twenty-three thousand, five hundred forty".