140043600 has 120 divisors (see below), whose sum is σ = 498489920. Its totient is φ = 37342080.

The previous prime is 140043599. The next prime is 140043679. The reversal of 140043600 is 6340041.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×140043600² = 39224419801920000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 4317 + ... + 17283.

Almost surely, 2^140043600 is an apocalyptic number.

140043600 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 140043600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249244960).

140043600 is an abundant number, since it is smaller than the sum of its proper divisors (358446320).

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

140043600 is a wasteful number, since it uses less digits than its factorization.

140043600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12994 (or 12977 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 140043600 is about 11834.0018590500. The cubic root of 140043600 is about 519.3033076244.

Adding to 140043600 its reverse (6340041), we get a palindrome (146383641).

The spelling of 140043600 in words is "one hundred forty million, forty-three thousand, six hundred".