302003440420 has 192 divisors, whose sum is σ = 751997675520. Its totient is φ = 100650137600.

The previous prime is 302003440399. The next prime is 302003440421. The reversal of 302003440420 is 24044300203.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 302003440391 and 302003440400.

It is not an unprimeable number, because it can be changed into a prime (302003440421) 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 63 ways as a sum of consecutive naturals, for example, 23604225 + ... + 23617015.

It is an arithmetic number, because the mean of its divisors is an integer number (3916654560).

Almost surely, 2^302003440420 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 302003440420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375998837760).

302003440420 is an abundant number, since it is smaller than the sum of its proper divisors (449994235100).

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

302003440420 is a wasteful number, since it uses less digits than its factorization.

302003440420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12994 (or 12992 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 302003440420 its reverse (24044300203), we get a palindrome (326047740623).

The spelling of 302003440420 in words is "three hundred two billion, three million, four hundred forty thousand, four hundred twenty".