140340443 has 8 divisors (see below), whose sum is σ = 143956560. Its totient is φ = 136766880.

The previous prime is 140340437. The next prime is 140340481. The reversal of 140340443 is 344043041.

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

It is not a de Polignac number, because 140340443 - 2⁴ = 140340427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140340493) 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, 3905 + ... + 17202.

It is an arithmetic number, because the mean of its divisors is an integer number (17994570).

Almost surely, 2^140340443 is an apocalyptic number.

140340443 is a deficient number, since it is larger than the sum of its proper divisors (3616117).

140340443 is a wasteful number, since it uses less digits than its factorization.

140340443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21277.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 140340443 is about 11846.5371733684. The cubic root of 140340443 is about 519.6699619240.

Adding to 140340443 its reverse (344043041), we get a palindrome (484383484).

The spelling of 140340443 in words is "one hundred forty million, three hundred forty thousand, four hundred forty-three".