305214730 has 8 divisors (see below), whose sum is σ = 549386532. Its totient is φ = 122085888.

The previous prime is 305214667. The next prime is 305214733. The reversal of 305214730 is 37412503.

It can be written as a sum of positive squares in 2 ways, for example, as 304537401 + 677329 = 17451^2 + 823^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 305214695 and 305214704.

It is not an unprimeable number, because it can be changed into a prime (305214733) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 15260727 + ... + 15260746.

Almost surely, 2^305214730 is an apocalyptic number.

305214730 is a deficient number, since it is larger than the sum of its proper divisors (244171802).

305214730 is a wasteful number, since it uses less digits than its factorization.

305214730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30521480.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 305214730 is about 17470.3958169241. The cubic root of 305214730 is about 673.2894815629.

The spelling of 305214730 in words is "three hundred five million, two hundred fourteen thousand, seven hundred thirty".