303042330 has 64 divisors (see below), whose sum is σ = 817257600. Its totient is φ = 79896960.

The previous prime is 303042307. The next prime is 303042331. The reversal of 303042330 is 33240303.

303042330 is a `hidden beast` number, since 30 + 304 + 2 + 330 = 666.

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 (303042331) 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, 17725 + ... + 30335.

It is an arithmetic number, because the mean of its divisors is an integer number (12769650).

Almost surely, 2^303042330 is an apocalyptic number.

303042330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 303042330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408628800).

303042330 is an abundant number, since it is smaller than the sum of its proper divisors (514215270).

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

303042330 is a wasteful number, since it uses less digits than its factorization.

303042330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12716 (or 12710 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

The square root of 303042330 is about 17408.1110405466. Note that the first 3 decimals coincide. The cubic root of 303042330 is about 671.6882721908.

Adding to 303042330 its reverse (33240303), we get a palindrome (336282633).

The spelling of 303042330 in words is "three hundred three million, forty-two thousand, three hundred thirty".