140421242 has 32 divisors (see below), whose sum is σ = 233501184. Its totient is φ = 62928000.

The previous prime is 140421217. The next prime is 140421283. The reversal of 140421242 is 242124041.

140421242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184142 + ... + 184902.

It is an arithmetic number, because the mean of its divisors is an integer number (7296912).

Almost surely, 2^140421242 is an apocalyptic number.

140421242 is a deficient number, since it is larger than the sum of its proper divisors (93079942).

140421242 is a wasteful number, since it uses less digits than its factorization.

140421242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 140421242 is about 11849.9469197123. The cubic root of 140421242 is about 519.7696736364.

Adding to 140421242 its reverse (242124041), we get a palindrome (382545283).

The spelling of 140421242 in words is "one hundred forty million, four hundred twenty-one thousand, two hundred forty-two".