140043240 has 96 divisors (see below), whose sum is σ = 461635200. Its totient is φ = 36812160.

The previous prime is 140043209. The next prime is 140043247. The reversal of 140043240 is 42340041.

140043240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×140043240² = 39224218139395200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (140043247) 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 23 ways as a sum of consecutive naturals, for example, 22821 + ... + 28299.

It is an arithmetic number, because the mean of its divisors is an integer number (4808700).

Almost surely, 2^140043240 is an apocalyptic number.

140043240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140043240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230817600).

140043240 is an abundant number, since it is smaller than the sum of its proper divisors (321591960).

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

140043240 is a wasteful number, since it uses less digits than its factorization.

140043240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5567 (or 5560 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 140043240 is about 11833.9866486320. The cubic root of 140043240 is about 519.3028626455.

Adding to 140043240 its reverse (42340041), we get a palindrome (182383281).

The spelling of 140043240 in words is "one hundred forty million, forty-three thousand, two hundred forty".