140400320 has 56 divisors (see below), whose sum is σ = 335359248. Its totient is φ = 55987200.

The previous prime is 140400319. The next prime is 140400341. The reversal of 140400320 is 23004041.

It is a super-2 number, since 2×140400320² = 39424499712204800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140400295 and 140400304.

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, 172715 + ... + 173525.

It is an arithmetic number, because the mean of its divisors is an integer number (5988558).

Almost surely, 2^140400320 is an apocalyptic number.

140400320 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 140400320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167679624).

140400320 is an abundant number, since it is smaller than the sum of its proper divisors (194958928).

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

140400320 is an equidigital number, since it uses as much as digits as its factorization.

140400320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 140400320 is about 11849.0640980628. The cubic root of 140400320 is about 519.7438580711.

Adding to 140400320 its reverse (23004041), we get a palindrome (163404361).

The spelling of 140400320 in words is "one hundred forty million, four hundred thousand, three hundred twenty".