140553240 has 64 divisors (see below), whose sum is σ = 431481600. Its totient is φ = 36607872.

The previous prime is 140553187. The next prime is 140553247. The reversal of 140553240 is 42355041.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 140553240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140553247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8460 + ... + 18779.

It is an arithmetic number, because the mean of its divisors is an integer number (6741900).

Almost surely, 2^140553240 is an apocalyptic number.

140553240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140553240 is an abundant number, since it is smaller than the sum of its proper divisors (290928360).

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

140553240 is a wasteful number, since it uses less digits than its factorization.

140553240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27296 (or 27292 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 140553240 is about 11855.5151722732. The cubic root of 140553240 is about 519.9324863038.

It can be divided in two parts, 1405 and 53240, that added together give a palindrome (54645).

The spelling of 140553240 in words is "one hundred forty million, five hundred fifty-three thousand, two hundred forty".