40123615442 has 8 divisors (see below), whose sum is σ = 60367253232. Its totient is φ = 20001197700.

The previous prime is 40123615417. The next prime is 40123615451. The reversal of 40123615442 is 24451632104.

40123615442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×40123615442² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40123615399 and 40123615408.

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, 30304184 + ... + 30305507.

It is an arithmetic number, because the mean of its divisors is an integer number (7545906654).

Almost surely, 2^40123615442 is an apocalyptic number.

40123615442 is a deficient number, since it is larger than the sum of its proper divisors (20243637790).

40123615442 is a wasteful number, since it uses less digits than its factorization.

40123615442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60610024.

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 40123615442 in words is "forty billion, one hundred twenty-three million, six hundred fifteen thousand, four hundred forty-two".