140325440 has 28 divisors (see below), whose sum is σ = 334150716. Its totient is φ = 56130048.

The previous prime is 140325433. The next prime is 140325457. The reversal of 140325440 is 44523041.

It can be written as a sum of positive squares in 2 ways, for example, as 19149376 + 121176064 = 4376^2 + 11008^2 .

It is a super-2 number, since 2×140325440² = 39382458222387200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218939 + ... + 219578.

Almost surely, 2^140325440 is an apocalyptic number.

140325440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140325440 is an abundant number, since it is smaller than the sum of its proper divisors (193825276).

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

140325440 is an equidigital number, since it uses as much as digits as its factorization.

140325440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438534 (or 438524 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 140325440 is about 11845.9039334278. The cubic root of 140325440 is about 519.6514429423.

Adding to 140325440 its reverse (44523041), we get a palindrome (184848481).

The spelling of 140325440 in words is "one hundred forty million, three hundred twenty-five thousand, four hundred forty".