140369240 has 128 divisors (see below), whose sum is σ = 365783040. Its totient is φ = 48000000.

The previous prime is 140369233. The next prime is 140369249. The reversal of 140369240 is 42963041.

140369240 is nontrivially palindromic in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140369249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 559115 + ... + 559365.

It is an arithmetic number, because the mean of its divisors is an integer number (2857680).

Almost surely, 2^140369240 is an apocalyptic number.

140369240 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 140369240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182891520).

140369240 is an abundant number, since it is smaller than the sum of its proper divisors (225413800).

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

140369240 is a wasteful number, since it uses less digits than its factorization.

140369240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 140369240 is about 11847.7525294885. The cubic root of 140369240 is about 519.7055038584.

The spelling of 140369240 in words is "one hundred forty million, three hundred sixty-nine thousand, two hundred forty".