140330556 has 72 divisors (see below), whose sum is σ = 374250240. Its totient is φ = 45965232.

The previous prime is 140330551. The next prime is 140330573. The reversal of 140330556 is 655033041.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140330551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56125 + ... + 58571.

It is an arithmetic number, because the mean of its divisors is an integer number (5197920).

Almost surely, 2^140330556 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 140330556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187125120).

140330556 is an abundant number, since it is smaller than the sum of its proper divisors (233919684).

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

140330556 is a wasteful number, since it uses less digits than its factorization.

140330556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525 (or 2511 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 140330556 is about 11846.1198710802. The cubic root of 140330556 is about 519.6577580350.

Adding to 140330556 its reverse (655033041), we get a palindrome (795363597).

The spelling of 140330556 in words is "one hundred forty million, three hundred thirty thousand, five hundred fifty-six".