30161442 has 8 divisors (see below), whose sum is σ = 60322896. Its totient is φ = 10053812.

The previous prime is 30161437. The next prime is 30161501. The reversal of 30161442 is 24416103.

It is a sphenic number, since it is the product of 3 distinct primes.

30161442 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 2513448 + ... + 2513459.

It is an arithmetic number, because the mean of its divisors is an integer number (7540362).

Almost surely, 2^30161442 is an apocalyptic number.

30161442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30161442 is a wasteful number, since it uses less digits than its factorization.

30161442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026912.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 30161442 is about 5491.9433718858. The cubic root of 30161442 is about 311.2796291208.

Adding to 30161442 its reverse (24416103), we get a palindrome (54577545).

It can be divided in two parts, 30161 and 442, that added together give a palindrome (30603).

The spelling of 30161442 in words is "thirty million, one hundred sixty-one thousand, four hundred forty-two".