30494817 has 12 divisors (see below), whose sum is σ = 44214144. Its totient is φ = 20253240.

The previous prime is 30494813. The next prime is 30494819. The reversal of 30494817 is 71849403.

It is a happy number.

It is not a de Polignac number, because 30494817 - 2² = 30494813 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30494813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3813 + ... + 8690.

It is an arithmetic number, because the mean of its divisors is an integer number (3684512).

Almost surely, 2^30494817 is an apocalyptic number.

It is an amenable number.

30494817 is a deficient number, since it is larger than the sum of its proper divisors (13719327).

30494817 is a wasteful number, since it uses less digits than its factorization.

30494817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12780 (or 12777 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 30494817 is about 5522.2112418849. The cubic root of 30494817 is about 312.4222893703.

The spelling of 30494817 in words is "thirty million, four hundred ninety-four thousand, eight hundred seventeen".