305649356 has 12 divisors (see below), whose sum is σ = 535268160. Its totient is φ = 152715600.

The previous prime is 305649353. The next prime is 305649373. The reversal of 305649356 is 653946503.

305649356 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (305649353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20795 + ... + 32306.

It is an arithmetic number, because the mean of its divisors is an integer number (44605680).

Almost surely, 2^305649356 is an apocalyptic number.

It is an amenable number.

305649356 is a deficient number, since it is larger than the sum of its proper divisors (229618804).

305649356 is a wasteful number, since it uses less digits than its factorization.

305649356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54544 (or 54542 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 41.

The square root of 305649356 is about 17482.8303200597. The cubic root of 305649356 is about 673.6089182238.

The spelling of 305649356 in words is "three hundred five million, six hundred forty-nine thousand, three hundred fifty-six".