140320000 has 90 divisors (see below), whose sum is σ = 350401898. Its totient is φ = 56064000.

The previous prime is 140319967. The next prime is 140320001. The reversal of 140320000 is 23041.

It can be written as a sum of positive squares in 5 ways, for example, as 30824704 + 109495296 = 5552^2 + 10464^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140320001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 159562 + ... + 160438.

Almost surely, 2^140320000 is an apocalyptic number.

140320000 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 140320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175200949).

140320000 is an abundant number, since it is smaller than the sum of its proper divisors (210081898).

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

140320000 is an frugal number, since it uses more digits than its factorization.

140320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 140320000 is about 11845.6743159687. The cubic root of 140320000 is about 519.6447277418.

Adding to 140320000 its reverse (23041), we get a palindrome (140343041).

The spelling of 140320000 in words is "one hundred forty million, three hundred twenty thousand".