30442963 has 2 divisors, whose sum is σ = 30442964. Its totient is φ = 30442962.

The previous prime is 30442943. The next prime is 30442967. The reversal of 30442963 is 36924403.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30442963 is a prime.

It is equal to p_1883623 and since 30442963 and 1883623 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (30442967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15221481 + 15221482.

It is an arithmetic number, because the mean of its divisors is an integer number (15221482).

Almost surely, 2^30442963 is an apocalyptic number.

30442963 is a deficient number, since it is larger than the sum of its proper divisors (1).

30442963 is an equidigital number, since it uses as much as digits as its factorization.

30442963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 30442963 is about 5517.5142047846. The cubic root of 30442963 is about 312.2451058559.

The spelling of 30442963 in words is "thirty million, four hundred forty-two thousand, nine hundred sixty-three".