140234320 has 40 divisors (see below), whose sum is σ = 328416480. Its totient is φ = 55685760.

The previous prime is 140234299. The next prime is 140234357. The reversal of 140234320 is 23432041.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4815 + ... + 17425.

It is an arithmetic number, because the mean of its divisors is an integer number (8210412).

Almost surely, 2^140234320 is an apocalyptic number.

140234320 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 140234320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164208240).

140234320 is an abundant number, since it is smaller than the sum of its proper divisors (188182160).

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

140234320 is a wasteful number, since it uses less digits than its factorization.

140234320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12763 (or 12757 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 140234320 is about 11842.0572537039. The cubic root of 140234320 is about 519.5389404334.

Adding to 140234320 its reverse (23432041), we get a palindrome (163666361).

The spelling of 140234320 in words is "one hundred forty million, two hundred thirty-four thousand, three hundred twenty".