306440052 has 24 divisors (see below), whose sum is σ = 724080000. Its totient is φ = 100853376.

The previous prime is 306440039. The next prime is 306440087. The reversal of 306440052 is 250044603.

306440052 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160677 + ... + 162572.

It is an arithmetic number, because the mean of its divisors is an integer number (30170000).

Almost surely, 2^306440052 is an apocalyptic number.

It is an amenable number.

306440052 is an abundant number, since it is smaller than the sum of its proper divisors (417639948).

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

306440052 is a wasteful number, since it uses less digits than its factorization.

306440052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323335 (or 323333 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 306440052 is about 17505.4292149607. The cubic root of 306440052 is about 674.1892796094.

Adding to 306440052 its reverse (250044603), we get a palindrome (556484655).

The spelling of 306440052 in words is "three hundred six million, four hundred forty thousand, fifty-two".