305666252 has 6 divisors (see below), whose sum is σ = 534915948. Its totient is φ = 152833124.

The previous prime is 305666203. The next prime is 305666269. The reversal of 305666252 is 252666503.

305666252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×305666252² = 186863715223455008, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 38208278 + ... + 38208285.

It is an arithmetic number, because the mean of its divisors is an integer number (89152658).

Almost surely, 2^305666252 is an apocalyptic number.

It is an amenable number.

305666252 is a deficient number, since it is larger than the sum of its proper divisors (229249696).

305666252 is a wasteful number, since it uses less digits than its factorization.

305666252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76416567 (or 76416565 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 305666252 is about 17483.3135303351. The cubic root of 305666252 is about 673.6213301444.

The spelling of 305666252 in words is "three hundred five million, six hundred sixty-six thousand, two hundred fifty-two".