140447442 has 8 divisors (see below), whose sum is σ = 280894896. Its totient is φ = 46815812.

The previous prime is 140447441. The next prime is 140447471. The reversal of 140447442 is 244744041.

140447442 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.

140447442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (140447441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11703948 + ... + 11703959.

It is an arithmetic number, because the mean of its divisors is an integer number (35111862).

Almost surely, 2^140447442 is an apocalyptic number.

140447442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

140447442 is a wasteful number, since it uses less digits than its factorization.

140447442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23407912.

The product of its (nonzero) digits is 14336, while the sum is 30.

The square root of 140447442 is about 11851.0523583351. The cubic root of 140447442 is about 519.8019980872.

The spelling of 140447442 in words is "one hundred forty million, four hundred forty-seven thousand, four hundred forty-two".