140420042 has 8 divisors (see below), whose sum is σ = 240720096. Its totient is φ = 60180012.

The previous prime is 140420023. The next prime is 140420057. The reversal of 140420042 is 240024041.

140420042 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 self number, because there is not a number n which added to its sum of digits gives 140420042.

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, 5014988 + ... + 5015015.

It is an arithmetic number, because the mean of its divisors is an integer number (30090012).

Almost surely, 2^140420042 is an apocalyptic number.

140420042 is a deficient number, since it is larger than the sum of its proper divisors (100300054).

140420042 is a wasteful number, since it uses less digits than its factorization.

140420042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10030012.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 140420042 is about 11849.8962864660. The cubic root of 140420042 is about 519.7681930309.

Adding to 140420042 its reverse (240024041), we get a palindrome (380444083).

The spelling of 140420042 in words is "one hundred forty million, four hundred twenty thousand, forty-two".