30404189 has 2 divisors, whose sum is σ = 30404190. Its totient is φ = 30404188.

The previous prime is 30404167. The next prime is 30404201. The reversal of 30404189 is 98140403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17081689 + 13322500 = 4133^2 + 3650^2 .

It is a cyclic number.

It is not a de Polignac number, because 30404189 - 2¹⁶ = 30338653 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30400189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15202094 + 15202095.

It is an arithmetic number, because the mean of its divisors is an integer number (15202095).

Almost surely, 2^30404189 is an apocalyptic number.

It is an amenable number.

30404189 is a deficient number, since it is larger than the sum of its proper divisors (1).

30404189 is an equidigital number, since it uses as much as digits as its factorization.

30404189 is an evil number, because the sum of its binary digits is even.

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

The square root of 30404189 is about 5513.9993652520. Note that the first 3 decimals coincide. The cubic root of 30404189 is about 312.1124847809.

The spelling of 30404189 in words is "thirty million, four hundred four thousand, one hundred eighty-nine".