30304242 has 48 divisors (see below), whose sum is σ = 67466880. Its totient is φ = 9828000.

The previous prime is 30304231. The next prime is 30304243. The reversal of 30304242 is 24240303.

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 (30304243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143517 + ... + 143727.

It is an arithmetic number, because the mean of its divisors is an integer number (1405560).

Almost surely, 2^30304242 is an apocalyptic number.

30304242 is an abundant number, since it is smaller than the sum of its proper divisors (37162638).

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

30304242 is a wasteful number, since it uses less digits than its factorization.

30304242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 30304242 is about 5504.9288823744. The cubic root of 30304242 is about 311.7701092510.

Adding to 30304242 its reverse (24240303), we get a palindrome (54544545).

The spelling of 30304242 in words is "thirty million, three hundred four thousand, two hundred forty-two".