140340404 has 6 divisors (see below), whose sum is σ = 245595714. Its totient is φ = 70170200.

The previous prime is 140340401. The next prime is 140340407. The reversal of 140340404 is 404043041.

140340404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (140340401) and next prime (140340407).

It can be written as a sum of positive squares in only one way, i.e., 134328100 + 6012304 = 11590^2 + 2452^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140340401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17542547 + ... + 17542554.

It is an arithmetic number, because the mean of its divisors is an integer number (40932619).

Almost surely, 2^140340404 is an apocalyptic number.

It is an amenable number.

140340404 is a deficient number, since it is larger than the sum of its proper divisors (105255310).

140340404 is a wasteful number, since it uses less digits than its factorization.

140340404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35085105 (or 35085103 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 140340404 is about 11846.5355273177. The cubic root of 140340404 is about 519.6699137860.

Adding to 140340404 its reverse (404043041), we get a palindrome (544383445).

The spelling of 140340404 in words is "one hundred forty million, three hundred forty thousand, four hundred four".