140044400 has 30 divisors (see below), whose sum is σ = 336457632. Its totient is φ = 56017600.

The previous prime is 140044381. The next prime is 140044423. The reversal of 140044400 is 4440041.

It is a super-2 number, since 2×140044400² = 39224867942720000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174656 + ... + 175455.

Almost surely, 2^140044400 is an apocalyptic number.

140044400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140044400 is an abundant number, since it is smaller than the sum of its proper divisors (196413232).

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

140044400 is a wasteful number, since it uses less digits than its factorization.

140044400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350129 (or 350118 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 140044400 is about 11834.0356599091. The cubic root of 140044400 is about 519.3042964638.

Adding to 140044400 its reverse (4440041), we get a palindrome (144484441).

The spelling of 140044400 in words is "one hundred forty million, forty-four thousand, four hundred".