140024320 has 80 divisors (see below), whose sum is σ = 340290720. Its totient is φ = 55250944.

The previous prime is 140024309. The next prime is 140024333. The reversal of 140024320 is 23420041.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 140024294 and 140024303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212151 + ... + 212809.

It is an arithmetic number, because the mean of its divisors is an integer number (4253634).

Almost surely, 2^140024320 is an apocalyptic number.

140024320 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 140024320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170145360).

140024320 is an abundant number, since it is smaller than the sum of its proper divisors (200266400).

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

140024320 is an frugal number, since it uses more digits than its factorization.

140024320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 140024320 is about 11833.1872291450. The cubic root of 140024320 is about 519.2794754577.

Adding to 140024320 its reverse (23420041), we get a palindrome (163444361).

The spelling of 140024320 in words is "one hundred forty million, twenty-four thousand, three hundred twenty".