302130535440 has 160 divisors (see below), whose sum is σ = 951358680576. Its totient is φ = 79308236800.

The previous prime is 302130535391. The next prime is 302130535481. The reversal of 302130535440 is 44535031203.

It is a super-2 number, since 2×302130535440² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 302130535398 and 302130535407.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4157497 + ... + 4229543.

Almost surely, 2^302130535440 is an apocalyptic number.

302130535440 is a gapful number since it is divisible by the number (30) 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 302130535440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (475679340288).

302130535440 is an abundant number, since it is smaller than the sum of its proper divisors (649228145136).

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

302130535440 is a wasteful number, since it uses less digits than its factorization.

302130535440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72337 (or 72331 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 302130535440 its reverse (44535031203), we get a palindrome (346665566643).

The spelling of 302130535440 in words is "three hundred two billion, one hundred thirty million, five hundred thirty-five thousand, four hundred forty".