40115210042 has 8 divisors (see below), whose sum is σ = 61799107476. Its totient is φ = 19515507552.

The previous prime is 40115210039. The next prime is 40115210129. The reversal of 40115210042 is 24001251104.

It is a happy number.

40115210042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 32753398441 + 7361811601 = 180979^2 + 85801^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 40115209996 and 40115210023.

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, 271048643 + ... + 271048790.

Almost surely, 2^40115210042 is an apocalyptic number.

40115210042 is a deficient number, since it is larger than the sum of its proper divisors (21683897434).

40115210042 is a wasteful number, since it uses less digits than its factorization.

40115210042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542097472.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 40115210042 its reverse (24001251104), we get a palindrome (64116461146).

The spelling of 40115210042 in words is "forty billion, one hundred fifteen million, two hundred ten thousand, forty-two".