140137344 has 256 divisors, whose sum is σ = 452390400. Its totient is φ = 42577920.

The previous prime is 140137337. The next prime is 140137357. The reversal of 140137344 is 443731041.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3258987 + ... + 3259029.

It is an arithmetic number, because the mean of its divisors is an integer number (1767150).

Almost surely, 2^140137344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140137344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226195200).

140137344 is an abundant number, since it is smaller than the sum of its proper divisors (312253056).

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

140137344 is a wasteful number, since it uses less digits than its factorization.

140137344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 140137344 is about 11837.9619867611. The cubic root of 140137344 is about 519.4191541917.

Adding to 140137344 its reverse (443731041), we get a palindrome (583868385).

The spelling of 140137344 in words is "one hundred forty million, one hundred thirty-seven thousand, three hundred forty-four".