140943780 has 96 divisors (see below), whose sum is σ = 440926080. Its totient is φ = 37376640.

The previous prime is 140943739. The next prime is 140943811. The reversal of 140943780 is 87349041.

It is a happy number.

140943780 is a `hidden beast` number, since 140 + 9 + 437 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 31 ways as a sum of consecutive naturals, for example, 113322 + ... + 114558.

It is an arithmetic number, because the mean of its divisors is an integer number (4592980).

Almost surely, 2^140943780 is an apocalyptic number.

140943780 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 140943780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220463040).

140943780 is an abundant number, since it is smaller than the sum of its proper divisors (299982300).

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

140943780 is a wasteful number, since it uses less digits than its factorization.

140943780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 140943780 is about 11871.9745619674. The cubic root of 140943780 is about 520.4136009205.

The spelling of 140943780 in words is "one hundred forty million, nine hundred forty-three thousand, seven hundred eighty".