40023030042 has 40 divisors (see below), whose sum is σ = 89792109792. Its totient is φ = 13324516200.

The previous prime is 40023030037. The next prime is 40023030071. The reversal of 40023030042 is 24003032004.

40023030042 is a `hidden beast` number, since 400 + 230 + 30 + 0 + 4 + 2 = 666.

40023030042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 40023029997 and 40023030024.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20934 + ... + 283697.

Almost surely, 2^40023030042 is an apocalyptic number.

40023030042 is an abundant number, since it is smaller than the sum of its proper divisors (49769079750).

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

40023030042 is a wasteful number, since it uses less digits than its factorization.

40023030042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305456 (or 305447 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 40023030042 its reverse (24003032004), we get a palindrome (64026062046).

The spelling of 40023030042 in words is "forty billion, twenty-three million, thirty thousand, forty-two".