140028330 has 96 divisors (see below), whose sum is σ = 369982080. Its totient is φ = 33895680.

The previous prime is 140028311. The next prime is 140028341. The reversal of 140028330 is 33820041.

It is a happy number.

It is a super-3 number, since 3×140028330³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140028297 and 140028306.

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, 359776 + ... + 360164.

It is an arithmetic number, because the mean of its divisors is an integer number (3853980).

Almost surely, 2^140028330 is an apocalyptic number.

140028330 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 140028330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184991040).

140028330 is an abundant number, since it is smaller than the sum of its proper divisors (229953750).

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

140028330 is a wasteful number, since it uses less digits than its factorization.

140028330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 140028330 is about 11833.3566666437. The cubic root of 140028330 is about 519.2844324319.

Adding to 140028330 its reverse (33820041), we get a palindrome (173848371).

The spelling of 140028330 in words is "one hundred forty million, twenty-eight thousand, three hundred thirty".