140030992 has 40 divisors (see below), whose sum is σ = 285785280. Its totient is φ = 66337920.

The previous prime is 140030987. The next prime is 140030993. The reversal of 140030992 is 299030041.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 140030992.

It is not an unprimeable number, because it can be changed into a prime (140030993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38367 + ... + 41857.

It is an arithmetic number, because the mean of its divisors is an integer number (7144632).

Almost surely, 2^140030992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140030992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142892640).

140030992 is an abundant number, since it is smaller than the sum of its proper divisors (145754288).

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

140030992 is a wasteful number, since it uses less digits than its factorization.

140030992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631 (or 3625 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 140030992 is about 11833.4691447606. The cubic root of 140030992 is about 519.2877230194.

The spelling of 140030992 in words is "one hundred forty million, thirty thousand, nine hundred ninety-two".