30348421 has 2 divisors, whose sum is σ = 30348422. Its totient is φ = 30348420.

The previous prime is 30348401. The next prime is 30348449. The reversal of 30348421 is 12484303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16695396 + 13653025 = 4086^2 + 3695^2 .

It is a cyclic number.

It is not a de Polignac number, because 30348421 - 2⁵ = 30348389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30348401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15174210 + 15174211.

It is an arithmetic number, because the mean of its divisors is an integer number (15174211).

Almost surely, 2^30348421 is an apocalyptic number.

It is an amenable number.

30348421 is a deficient number, since it is larger than the sum of its proper divisors (1).

30348421 is an equidigital number, since it uses as much as digits as its factorization.

30348421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 30348421 is about 5508.9400976957. The cubic root of 30348421 is about 311.9215402371.

The spelling of 30348421 in words is "thirty million, three hundred forty-eight thousand, four hundred twenty-one".