140995640 has 16 divisors (see below), whose sum is σ = 317240280. Its totient is φ = 56398240.

The previous prime is 140995619. The next prime is 140995649. The reversal of 140995640 is 46599041.

It is a junction number, because it is equal to n+sod(n) for n = 140995594 and 140995603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140995649) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1762406 + ... + 1762485.

Almost surely, 2^140995640 is an apocalyptic number.

140995640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140995640 is an abundant number, since it is smaller than the sum of its proper divisors (176244640).

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

140995640 is a wasteful number, since it uses less digits than its factorization.

140995640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3524902 (or 3524898 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 140995640 is about 11874.1584964999. The cubic root of 140995640 is about 520.4774214970.

The spelling of 140995640 in words is "one hundred forty million, nine hundred ninety-five thousand, six hundred forty".