140650340 has 24 divisors (see below), whose sum is σ = 300940920. Its totient is φ = 55198208.

The previous prime is 140650297. The next prime is 140650343. The reversal of 140650340 is 43056041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2540836 + 138109504 = 1594^2 + 11752^2 .

It is not an unprimeable number, because it can be changed into a prime (140650343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65285 + ... + 67404.

It is an arithmetic number, because the mean of its divisors is an integer number (12539205).

Almost surely, 2^140650340 is an apocalyptic number.

140650340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140650340 is an abundant number, since it is smaller than the sum of its proper divisors (160290580).

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

140650340 is a wasteful number, since it uses less digits than its factorization.

140650340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132751 (or 132749 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 140650340 is about 11859.6096057164. The cubic root of 140650340 is about 520.0521890420.

The spelling of 140650340 in words is "one hundred forty million, six hundred fifty thousand, three hundred forty".