305142006 has 24 divisors (see below), whose sum is σ = 660842280. Its totient is φ = 93889536.

The previous prime is 305141999. The next prime is 305142007. The reversal of 305142006 is 600241503.

It is a happy number.

It is a super-2 number, since 2×305142006² = 186223287651408072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305142007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149451 + ... + 151478.

It is an arithmetic number, because the mean of its divisors is an integer number (27535095).

Almost surely, 2^305142006 is an apocalyptic number.

305142006 is an abundant number, since it is smaller than the sum of its proper divisors (355700274).

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

305142006 is a wasteful number, since it uses less digits than its factorization.

305142006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300960 (or 300947 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 305142006 is about 17468.3143434047. The cubic root of 305142006 is about 673.2360020626.

Adding to 305142006 its reverse (600241503), we get a palindrome (905383509).

It can be divided in two parts, 305 and 142006, that added together give a triangular number (142311 = T₅₃₃).

The spelling of 305142006 in words is "three hundred five million, one hundred forty-two thousand, six".