30422641 has 2 divisors, whose sum is σ = 30422642. Its totient is φ = 30422640.

The previous prime is 30422627. The next prime is 30422659. The reversal of 30422641 is 14622403.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29430625 + 992016 = 5425^2 + 996^2 .

It is an emirp because it is prime and its reverse (14622403) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30422641 is a prime.

It is not a weakly prime, because it can be changed into another prime (30422681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15211320 + 15211321.

It is an arithmetic number, because the mean of its divisors is an integer number (15211321).

Almost surely, 2^30422641 is an apocalyptic number.

It is an amenable number.

30422641 is a deficient number, since it is larger than the sum of its proper divisors (1).

30422641 is an equidigital number, since it uses as much as digits as its factorization.

30422641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 30422641 is about 5515.6723071626. The cubic root of 30422641 is about 312.1756113336.

The spelling of 30422641 in words is "thirty million, four hundred twenty-two thousand, six hundred forty-one".