30992441 has 2 divisors, whose sum is σ = 30992442. Its totient is φ = 30992440.

The previous prime is 30992407. The next prime is 30992461. The reversal of 30992441 is 14429903.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24049216 + 6943225 = 4904^2 + 2635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30992441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30992398 and 30992407.

It is not a weakly prime, because it can be changed into another prime (30992461) 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 as a sum of consecutive naturals, namely, 15496220 + 15496221.

It is an arithmetic number, because the mean of its divisors is an integer number (15496221).

Almost surely, 2^30992441 is an apocalyptic number.

It is an amenable number.

30992441 is a deficient number, since it is larger than the sum of its proper divisors (1).

30992441 is an equidigital number, since it uses as much as digits as its factorization.

30992441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 30992441 is about 5567.0855032054. The cubic root of 30992441 is about 314.1125301567.

The spelling of 30992441 in words is "thirty million, nine hundred ninety-two thousand, four hundred forty-one".