140445330 has 96 divisors (see below), whose sum is σ = 363920256. Its totient is φ = 34676736.

The previous prime is 140445329. The next prime is 140445367. The reversal of 140445330 is 33544041.

It is a self number, because there is not a number n which added to its sum of digits gives 140445330.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 840907 + ... + 841073.

It is an arithmetic number, because the mean of its divisors is an integer number (3790836).

Almost surely, 2^140445330 is an apocalyptic number.

140445330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140445330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181960128).

140445330 is an abundant number, since it is smaller than the sum of its proper divisors (223474926).

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

140445330 is a wasteful number, since it uses less digits than its factorization.

140445330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 140445330 is about 11850.9632519893. The cubic root of 140445330 is about 519.7993925400.

Adding to 140445330 its reverse (33544041), we get a palindrome (173989371).

The spelling of 140445330 in words is "one hundred forty million, four hundred forty-five thousand, three hundred thirty".