140244400 has 60 divisors (see below), whose sum is σ = 342031432. Its totient is φ = 55249920.

The previous prime is 140244361. The next prime is 140244437. The reversal of 140244400 is 4442041.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24184 + ... + 29416.

Almost surely, 2^140244400 is an apocalyptic number.

140244400 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 140244400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171015716).

140244400 is an abundant number, since it is smaller than the sum of its proper divisors (201787032).

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

140244400 is a wasteful number, since it uses less digits than its factorization.

140244400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5318 (or 5307 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 140244400 is about 11842.4828477815. The cubic root of 140244400 is about 519.5513882352.

Adding to 140244400 its reverse (4442041), we get a palindrome (144686441).

The spelling of 140244400 in words is "one hundred forty million, two hundred forty-four thousand, four hundred".