305080497 has 6 divisors (see below), whose sum is σ = 440671842. Its totient is φ = 203386992.

The previous prime is 305080481. The next prime is 305080507. The reversal of 305080497 is 794080503.

It can be written as a sum of positive squares in only one way, i.e., 295289856 + 9790641 = 17184^2 + 3129^2 .

It is not a de Polignac number, because 305080497 - 2⁴ = 305080481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (305082497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16948908 + ... + 16948925.

It is an arithmetic number, because the mean of its divisors is an integer number (73445307).

Almost surely, 2^305080497 is an apocalyptic number.

It is an amenable number.

305080497 is a deficient number, since it is larger than the sum of its proper divisors (135591345).

305080497 is a wasteful number, since it uses less digits than its factorization.

305080497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33897839 (or 33897836 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 305080497 is about 17466.5536669373. The cubic root of 305080497 is about 673.1907631737.

The spelling of 305080497 in words is "three hundred five million, eighty thousand, four hundred ninety-seven".