30490841 has 2 divisors, whose sum is σ = 30490842. Its totient is φ = 30490840.

The previous prime is 30490819. The next prime is 30490871. The reversal of 30490841 is 14809403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22762441 + 7728400 = 4771^2 + 2780^2 .

It is a cyclic number.

It is not a de Polignac number, because 30490841 - 2²² = 26296537 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30490871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15245420 + 15245421.

It is an arithmetic number, because the mean of its divisors is an integer number (15245421).

Almost surely, 2^30490841 is an apocalyptic number.

It is an amenable number.

30490841 is a deficient number, since it is larger than the sum of its proper divisors (1).

30490841 is an equidigital number, since it uses as much as digits as its factorization.

30490841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 30490841 is about 5521.8512294338. The cubic root of 30490841 is about 312.4087106146.

The spelling of 30490841 in words is "thirty million, four hundred ninety thousand, eight hundred forty-one".