40123200042 has 32 divisors (see below), whose sum is σ = 90673905600. Its totient is φ = 13147714224.

The previous prime is 40123200041. The next prime is 40123200059. The reversal of 40123200042 is 24000232104.

40123200042 is a `hidden beast` number, since 401 + 23 + 200 + 0 + 42 = 666.

40123200042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40123200042² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40123199988 and 40123200024.

It is not an unprimeable number, because it can be changed into a prime (40123200041) 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, 6293613 + ... + 6299984.

It is an arithmetic number, because the mean of its divisors is an integer number (2833559550).

Almost surely, 2^40123200042 is an apocalyptic number.

40123200042 is an abundant number, since it is smaller than the sum of its proper divisors (50550705558).

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

40123200042 is a wasteful number, since it uses less digits than its factorization.

40123200042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12593667 (or 12593661 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 40123200042 its reverse (24000232104), we get a palindrome (64123432146).

The spelling of 40123200042 in words is "forty billion, one hundred twenty-three million, two hundred thousand, forty-two".