140240000 has 80 divisors (see below), whose sum is σ = 349317870. Its totient is φ = 56064000.

The previous prime is 140239997. The next prime is 140240011. The reversal of 140240000 is 42041.

It can be written as a sum of positive squares in 5 ways, for example, as 5494336 + 134745664 = 2344^2 + 11608^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a zygodrome in base 7.

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 9 ways as a sum of consecutive naturals, for example, 79124 + ... + 80876.

Almost surely, 2^140240000 is an apocalyptic number.

140240000 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 140240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174658935).

140240000 is an abundant number, since it is smaller than the sum of its proper divisors (209077870).

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

140240000 is an frugal number, since it uses more digits than its factorization.

140240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 140240000 is about 11842.2970744700. The cubic root of 140240000 is about 519.5459547443.

Adding to 140240000 its reverse (42041), we get a palindrome (140282041).

The spelling of 140240000 in words is "one hundred forty million, two hundred forty thousand".