140204144240 has 80 divisors (see below), whose sum is σ = 327022944192. Its totient is φ = 55901601792.

The previous prime is 140204144209. The next prime is 140204144279. The reversal of 140204144240 is 42441402041.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47412842 + ... + 47415798.

Almost surely, 2^140204144240 is an apocalyptic number.

140204144240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140204144240 is an abundant number, since it is smaller than the sum of its proper divisors (186818799952).

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

140204144240 is a wasteful number, since it uses less digits than its factorization.

140204144240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4674 (or 4668 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 140204144240 its reverse (42441402041), we get a palindrome (182645546281).

The spelling of 140204144240 in words is "one hundred forty billion, two hundred four million, one hundred forty-four thousand, two hundred forty".