30744949 has 2 divisors, whose sum is σ = 30744950. Its totient is φ = 30744948.

The previous prime is 30744941. The next prime is 30744953. The reversal of 30744949 is 94944703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22944100 + 7800849 = 4790^2 + 2793^2 .

It is a cyclic number.

It is not a de Polignac number, because 30744949 - 2³ = 30744941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30744941) 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, 15372474 + 15372475.

It is an arithmetic number, because the mean of its divisors is an integer number (15372475).

Almost surely, 2^30744949 is an apocalyptic number.

It is an amenable number.

30744949 is a deficient number, since it is larger than the sum of its proper divisors (1).

30744949 is an equidigital number, since it uses as much as digits as its factorization.

30744949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 30744949 is about 5544.8128011683. The cubic root of 30744949 is about 313.2741731021.

The spelling of 30744949 in words is "thirty million, seven hundred forty-four thousand, nine hundred forty-nine".