30352142 has 4 divisors (see below), whose sum is σ = 45528216. Its totient is φ = 15176070.

The previous prime is 30352141. The next prime is 30352207. The reversal of 30352142 is 24125303.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30352141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7588034 + ... + 7588037.

It is an arithmetic number, because the mean of its divisors is an integer number (11382054).

Almost surely, 2^30352142 is an apocalyptic number.

30352142 is a deficient number, since it is larger than the sum of its proper divisors (15176074).

30352142 is a wasteful number, since it uses less digits than its factorization.

30352142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15176073.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30352142 is about 5509.2778111110. The cubic root of 30352142 is about 311.9342878813.

Adding to 30352142 its reverse (24125303), we get a palindrome (54477445).

The spelling of 30352142 in words is "thirty million, three hundred fifty-two thousand, one hundred forty-two".