140421442 has 8 divisors (see below), whose sum is σ = 240722496. Its totient is φ = 60180612.

The previous prime is 140421431. The next prime is 140421511. The reversal of 140421442 is 244124041.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 5015038 + ... + 5015065.

It is an arithmetic number, because the mean of its divisors is an integer number (30090312).

Almost surely, 2^140421442 is an apocalyptic number.

140421442 is a deficient number, since it is larger than the sum of its proper divisors (100301054).

140421442 is a wasteful number, since it uses less digits than its factorization.

140421442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10030112.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 140421442 is about 11849.9553585657. The cubic root of 140421442 is about 519.7699204032.

Adding to 140421442 its reverse (244124041), we get a palindrome (384545483).

The spelling of 140421442 in words is "one hundred forty million, four hundred twenty-one thousand, four hundred forty-two".