30980461 has 12 divisors (see below), whose sum is σ = 32466420. Its totient is φ = 29544320.

The previous prime is 30980447. The next prime is 30980479. The reversal of 30980461 is 16408903.

It can be written as a sum of positive squares in 6 ways, for example, as 2996361 + 27984100 = 1731^2 + 5290^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30980461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30980491) 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, 115035 + ... + 115303.

It is an arithmetic number, because the mean of its divisors is an integer number (2705535).

Almost surely, 2^30980461 is an apocalyptic number.

It is an amenable number.

30980461 is a deficient number, since it is larger than the sum of its proper divisors (1485959).

30980461 is an equidigital number, since it uses as much as digits as its factorization.

30980461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 30980461 is about 5566.0094322593. The cubic root of 30980461 is about 314.0720519739.

The spelling of 30980461 in words is "thirty million, nine hundred eighty thousand, four hundred sixty-one".