30980943 has 24 divisors (see below), whose sum is σ = 52236288. Its totient is φ = 17325072.

The previous prime is 30980933. The next prime is 30980947. The reversal of 30980943 is 34908903.

It is not a de Polignac number, because 30980943 - 2¹⁴ = 30964559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30980898 and 30980907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30980947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2271 + ... + 8192.

It is an arithmetic number, because the mean of its divisors is an integer number (2176512).

Almost surely, 2^30980943 is an apocalyptic number.

30980943 is a deficient number, since it is larger than the sum of its proper divisors (21255345).

30980943 is a wasteful number, since it uses less digits than its factorization.

30980943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10523 (or 10520 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 30980943 is about 5566.0527306162. The cubic root of 30980943 is about 314.0736807633.

The spelling of 30980943 in words is "thirty million, nine hundred eighty thousand, nine hundred forty-three".