30494263 has 4 divisors (see below), whose sum is σ = 30510648. Its totient is φ = 30477880.

The previous prime is 30494227. The next prime is 30494279. The reversal of 30494263 is 36249403.

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-30494263 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 (30494213) 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, 4981 + ... + 9262.

It is an arithmetic number, because the mean of its divisors is an integer number (7627662).

Almost surely, 2^30494263 is an apocalyptic number.

30494263 is a deficient number, since it is larger than the sum of its proper divisors (16385).

30494263 is a wasteful number, since it uses less digits than its factorization.

30494263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16384.

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

The square root of 30494263 is about 5522.1610805915. The cubic root of 30494263 is about 312.4203974314.

The spelling of 30494263 in words is "thirty million, four hundred ninety-four thousand, two hundred sixty-three".