30442463 has 4 divisors (see below), whose sum is σ = 30727080. Its totient is φ = 30157848.

The previous prime is 30442441. The next prime is 30442481. The reversal of 30442463 is 36424403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30442463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142148 + ... + 142361.

It is an arithmetic number, because the mean of its divisors is an integer number (7681770).

Almost surely, 2^30442463 is an apocalyptic number.

30442463 is a deficient number, since it is larger than the sum of its proper divisors (284617).

30442463 is a wasteful number, since it uses less digits than its factorization.

30442463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284616.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 30442463 is about 5517.4688943391. The cubic root of 30442463 is about 312.2433963924.

Adding to 30442463 its reverse (36424403), we get a palindrome (66866866).

The spelling of 30442463 in words is "thirty million, four hundred forty-two thousand, four hundred sixty-three".