30042162 has 48 divisors (see below), whose sum is σ = 71165952. Its totient is φ = 9118080.

The previous prime is 30042157. The next prime is 30042191. The reversal of 30042162 is 26124003.

It is a happy number.

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

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 23 ways as a sum of consecutive naturals, for example, 7903 + ... + 11069.

It is an arithmetic number, because the mean of its divisors is an integer number (1482624).

Almost surely, 2^30042162 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30042162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35582976).

30042162 is an abundant number, since it is smaller than the sum of its proper divisors (41123790).

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

30042162 is a wasteful number, since it uses less digits than its factorization.

30042162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223 (or 3220 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30042162 is about 5481.0730701205. The cubic root of 30042162 is about 310.8687459424.

Adding to 30042162 its reverse (26124003), we get a palindrome (56166165).

The spelling of 30042162 in words is "thirty million, forty-two thousand, one hundred sixty-two".