30360042 has 32 divisors (see below), whose sum is σ = 69796800. Its totient is φ = 9770544.

The previous prime is 30359999. The next prime is 30360047. The reversal of 30360042 is 24006303.

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

It is a junction number, because it is equal to n+sod(n) for n = 30359997 and 30360024.

It is not an unprimeable number, because it can be changed into a prime (30360047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8128 + ... + 11259.

It is an arithmetic number, because the mean of its divisors is an integer number (2181150).

Almost surely, 2^30360042 is an apocalyptic number.

30360042 is an abundant number, since it is smaller than the sum of its proper divisors (39436758).

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

30360042 is a wasteful number, since it uses less digits than its factorization.

30360042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19427 (or 19421 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30360042 is about 5509.9947368396. The cubic root of 30360042 is about 311.9613487623.

Adding to 30360042 its reverse (24006303), we get a palindrome (54366345).

The spelling of 30360042 in words is "thirty million, three hundred sixty thousand, forty-two".