140279982 has 8 divisors (see below), whose sum is σ = 280559976. Its totient is φ = 46759992.

The previous prime is 140279981. The next prime is 140280017. The reversal of 140279982 is 289972041.

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

140279982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140279981) 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 3 ways as a sum of consecutive naturals, for example, 11689993 + ... + 11690004.

It is an arithmetic number, because the mean of its divisors is an integer number (35069997).

Almost surely, 2^140279982 is an apocalyptic number.

140279982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

140279982 is a wasteful number, since it uses less digits than its factorization.

140279982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23380002.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 140279982 is about 11843.9850557150. The cubic root of 140279982 is about 519.5953237132.

The spelling of 140279982 in words is "one hundred forty million, two hundred seventy-nine thousand, nine hundred eighty-two".