302130540 has 96 divisors (see below), whose sum is σ = 947358720. Its totient is φ = 79934400.

The previous prime is 302130529. The next prime is 302130547. The reversal of 302130540 is 45031203.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (302130547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68605 + ... + 72875.

It is an arithmetic number, because the mean of its divisors is an integer number (9868320).

Almost surely, 2^302130540 is an apocalyptic number.

302130540 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 302130540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473679360).

302130540 is an abundant number, since it is smaller than the sum of its proper divisors (645228180).

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

302130540 is a wasteful number, since it uses less digits than its factorization.

302130540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4420 (or 4412 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 302130540 is about 17381.9026576494. The cubic root of 302130540 is about 671.0139396522.

Adding to 302130540 its reverse (45031203), we get a palindrome (347161743).

The spelling of 302130540 in words is "three hundred two million, one hundred thirty thousand, five hundred forty".