140237240 has 64 divisors (see below), whose sum is σ = 370712160. Its totient is φ = 47070720.

The previous prime is 140237221. The next prime is 140237249. The reversal of 140237240 is 42732041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140237249) 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, 6539 + ... + 17978.

Almost surely, 2^140237240 is an apocalyptic number.

140237240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140237240 is an abundant number, since it is smaller than the sum of its proper divisors (230474920).

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

140237240 is a wasteful number, since it uses less digits than its factorization.

140237240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24552 (or 24548 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 140237240 is about 11842.1805424508. The cubic root of 140237240 is about 519.5425464056.

Adding to 140237240 its reverse (42732041), we get a palindrome (182969281).

The spelling of 140237240 in words is "one hundred forty million, two hundred thirty-seven thousand, two hundred forty".