304220140032 has 80 divisors (see below), whose sum is σ = 811464125472. Its totient is φ = 101281259520.

The previous prime is 304220140027. The next prime is 304220140033. The reversal of 304220140032 is 230041022403.

It is a super-2 number, since 2×304220140032² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 304220139990 and 304220140008.

It is not an unprimeable number, because it can be changed into a prime (304220140033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123588 + ... + 1367804.

Almost surely, 2^304220140032 is an apocalyptic number.

304220140032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304220140032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405732062736).

304220140032 is an abundant number, since it is smaller than the sum of its proper divisors (507243985440).

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

304220140032 is an equidigital number, since it uses as much as digits as its factorization.

304220140032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245049 (or 245033 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 304220140032 its reverse (230041022403), we get a palindrome (534261162435).

The spelling of 304220140032 in words is "three hundred four billion, two hundred twenty million, one hundred forty thousand, thirty-two".