302300040 has 128 divisors (see below), whose sum is σ = 1081589760. Its totient is φ = 66088704.

The previous prime is 302300039. The next prime is 302300059. The reversal of 302300040 is 40003203.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 302299989 and 302300025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11497 + ... + 27143.

It is an arithmetic number, because the mean of its divisors is an integer number (8449920).

Almost surely, 2^302300040 is an apocalyptic number.

302300040 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 302300040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540794880).

302300040 is an abundant number, since it is smaller than the sum of its proper divisors (779289720).

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

302300040 is a wasteful number, since it uses less digits than its factorization.

302300040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15691 (or 15687 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 302300040 is about 17386.7777348191. Note that the first 4 decimals coincide. The cubic root of 302300040 is about 671.1393993293.

Adding to 302300040 its reverse (40003203), we get a palindrome (342303243).

The spelling of 302300040 in words is "three hundred two million, three hundred thousand, forty".