140683320 has 96 divisors (see below), whose sum is σ = 458686800. Its totient is φ = 37395456.

The previous prime is 140683307. The next prime is 140683327. The reversal of 140683320 is 23386041.

140683320 = 160² + 161² + ... + 752².

It is a happy number.

It is a Cunningham number, because it is equal to 11861²-1.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140683327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213151 + ... + 213809.

Almost surely, 2^140683320 is an apocalyptic number.

140683320 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 140683320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229343400).

140683320 is an abundant number, since it is smaller than the sum of its proper divisors (318003480).

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

140683320 is a wasteful number, since it uses less digits than its factorization.

140683320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269 (or 1262 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 140683320 is about 11860.9999578450. Note that the first 4 decimals coincide. The cubic root of 140683320 is about 520.0928335244.

The spelling of 140683320 in words is "one hundred forty million, six hundred eighty-three thousand, three hundred twenty".