305020233040 has 40 divisors (see below), whose sum is σ = 709438843008. Its totient is φ = 121962192000.

The previous prime is 305020233031. The next prime is 305020233041. The reversal of 305020233040 is 40332020503.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305020233041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502836 + ... + 928915.

Almost surely, 2^305020233040 is an apocalyptic number.

It is an amenable number.

305020233040 is an abundant number, since it is smaller than the sum of its proper divisors (404418609968).

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

305020233040 is a wasteful number, since it uses less digits than its factorization.

305020233040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434427 (or 1434421 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

Adding to 305020233040 its reverse (40332020503), we get a palindrome (345352253543).

The spelling of 305020233040 in words is "three hundred five billion, twenty million, two hundred thirty-three thousand, forty".