305480061 has 12 divisors (see below), whose sum is σ = 442671840. Its totient is φ = 202996680.

The previous prime is 305480059. The next prime is 305480099. The reversal of 305480061 is 160084503.

It is not a de Polignac number, because 305480061 - 2¹ = 305480059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305480011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51771 + ... + 57368.

It is an arithmetic number, because the mean of its divisors is an integer number (36889320).

Almost surely, 2^305480061 is an apocalyptic number.

It is an amenable number.

305480061 is a deficient number, since it is larger than the sum of its proper divisors (137191779).

305480061 is a wasteful number, since it uses less digits than its factorization.

305480061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109456 (or 109453 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 305480061 is about 17477.9878990689. The cubic root of 305480061 is about 673.4845276644.

The spelling of 305480061 in words is "three hundred five million, four hundred eighty thousand, sixty-one".