305747272 has 16 divisors (see below), whose sum is σ = 575850240. Its totient is φ = 152187216.

The previous prime is 305747269. The next prime is 305747279. The reversal of 305747272 is 272747503.

It is not an unprimeable number, because it can be changed into a prime (305747279) 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, 83908 + ... + 87475.

It is an arithmetic number, because the mean of its divisors is an integer number (35990640).

Almost surely, 2^305747272 is an apocalyptic number.

It is an amenable number.

305747272 is a deficient number, since it is larger than the sum of its proper divisors (270102968).

305747272 is a wasteful number, since it uses less digits than its factorization.

305747272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171612 (or 171608 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 305747272 is about 17485.6304433097. The cubic root of 305747272 is about 673.6808416524.

The spelling of 305747272 in words is "three hundred five million, seven hundred forty-seven thousand, two hundred seventy-two".