140218368 has 52 divisors (see below), whose sum is σ = 373902768. Its totient is φ = 46735360.

The previous prime is 140218361. The next prime is 140218369. The reversal of 140218368 is 863812041.

It is a super-2 number, since 2×140218368² = 39322381449166848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140218361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6583 + ... + 17993.

Almost surely, 2^140218368 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 140218368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186951384).

140218368 is an abundant number, since it is smaller than the sum of its proper divisors (233684400).

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

140218368 is an equidigital number, since it uses as much as digits as its factorization.

140218368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11438 (or 11416 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 140218368 is about 11841.3837029293. The cubic root of 140218368 is about 519.5192400742.

The spelling of 140218368 in words is "one hundred forty million, two hundred eighteen thousand, three hundred sixty-eight".