140843680 has 48 divisors (see below), whose sum is σ = 334540584. Its totient is φ = 56033280.

The previous prime is 140843653. The next prime is 140843683. The reversal of 140843680 is 86348041.

It can be written as a sum of positive squares in 4 ways, for example, as 84713616 + 56130064 = 9204^2 + 7492^2 .

It is not an unprimeable number, because it can be changed into a prime (140843683) 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, 28600 + ... + 33160.

Almost surely, 2^140843680 is an apocalyptic number.

140843680 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 140843680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167270292).

140843680 is an abundant number, since it is smaller than the sum of its proper divisors (193696904).

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

140843680 is a wasteful number, since it uses less digits than its factorization.

140843680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4769 (or 4761 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 140843680 is about 11867.7580022513. The cubic root of 140843680 is about 520.2903703701.

The spelling of 140843680 in words is "one hundred forty million, eight hundred forty-three thousand, six hundred eighty".