140309984 has 24 divisors (see below), whose sum is σ = 290775240. Its totient is φ = 66462336.

The previous prime is 140309977. The next prime is 140310007. The reversal of 140309984 is 489903041.

140309984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×140309984² = 39373783220160512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114779 + ... + 115994.

It is an arithmetic number, because the mean of its divisors is an integer number (12115635).

Almost surely, 2^140309984 is an apocalyptic number.

It is an amenable number.

140309984 is an abundant number, since it is smaller than the sum of its proper divisors (150465256).

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

140309984 is a wasteful number, since it uses less digits than its factorization.

140309984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230802 (or 230794 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 140309984 is about 11845.2515380637. The cubic root of 140309984 is about 519.6323634188.

The spelling of 140309984 in words is "one hundred forty million, three hundred nine thousand, nine hundred eighty-four".