140943840 has 48 divisors (see below), whose sum is σ = 443974608. Its totient is φ = 37584896.

The previous prime is 140943823. The next prime is 140943863. The reversal of 140943840 is 48349041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 146337 + ... + 147296.

It is an arithmetic number, because the mean of its divisors is an integer number (9249471).

Almost surely, 2^140943840 is an apocalyptic number.

140943840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140943840 is an abundant number, since it is smaller than the sum of its proper divisors (303030768).

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

140943840 is a wasteful number, since it uses less digits than its factorization.

140943840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293651 (or 293643 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 140943840 is about 11871.9770889267. The cubic root of 140943840 is about 520.4136747675.

The spelling of 140943840 in words is "one hundred forty million, nine hundred forty-three thousand, eight hundred forty".