140740206 has 32 divisors (see below), whose sum is σ = 284497920. Its totient is φ = 46413984.

The previous prime is 140740157. The next prime is 140740213. The reversal of 140740206 is 602047041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391855 + ... + 392213.

It is an arithmetic number, because the mean of its divisors is an integer number (8890560).

Almost surely, 2^140740206 is an apocalyptic number.

140740206 is an abundant number, since it is smaller than the sum of its proper divisors (143757714).

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

140740206 is a wasteful number, since it uses less digits than its factorization.

140740206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 140740206 is about 11863.3977426368. The cubic root of 140740206 is about 520.1629247858.

Adding to 140740206 its reverse (602047041), we get a palindrome (742787247).

The spelling of 140740206 in words is "one hundred forty million, seven hundred forty thousand, two hundred six".