300040142 has 4 divisors (see below), whose sum is σ = 450060216. Its totient is φ = 150020070.

The previous prime is 300040121. The next prime is 300040159. The reversal of 300040142 is 241040003.

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

It is a super-2 number, since 2×300040142² = 180048173622760328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75010034 + ... + 75010037.

It is an arithmetic number, because the mean of its divisors is an integer number (112515054).

Almost surely, 2^300040142 is an apocalyptic number.

300040142 is a deficient number, since it is larger than the sum of its proper divisors (150020074).

300040142 is a wasteful number, since it uses less digits than its factorization.

300040142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150020073.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 300040142 is about 17321.6668366529. Note that the first 3 decimals coincide. The cubic root of 300040142 is about 669.4628069477.

Adding to 300040142 its reverse (241040003), we get a palindrome (541080145).

The spelling of 300040142 in words is "three hundred million, forty thousand, one hundred forty-two".