140000042 has 16 divisors (see below), whose sum is σ = 258461952. Its totient is φ = 55384560.

The previous prime is 140000041. The next prime is 140000053. The reversal of 140000042 is 240000041.

140000042 is a modest number, since divided by 42 gives 14 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 139999978 and 140000032.

It is not an unprimeable number, because it can be changed into a prime (140000041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384434 + ... + 384797.

It is an arithmetic number, because the mean of its divisors is an integer number (16153872).

Almost surely, 2^140000042 is an apocalyptic number.

140000042 is a deficient number, since it is larger than the sum of its proper divisors (118461910).

140000042 is a wasteful number, since it uses less digits than its factorization.

140000042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769253.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 140000042 is about 11832.1613410230. The cubic root of 140000042 is about 519.2494621100.

Adding to 140000042 its reverse (240000041), we get a palindrome (380000083).

Subtracting 140000042 from its reverse (240000041), we obtain a palindrome (99999999).

The spelling of 140000042 in words is "one hundred forty million, forty-two", and thus it is an aban number.