30797018 has 16 divisors (see below), whose sum is σ = 52876800. Its totient is φ = 13178256.

The previous prime is 30797017. The next prime is 30797051. The reversal of 30797018 is 81079703.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30797017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10808 + ... + 13356.

It is an arithmetic number, because the mean of its divisors is an integer number (3304800).

Almost surely, 2^30797018 is an apocalyptic number.

30797018 is a deficient number, since it is larger than the sum of its proper divisors (22079782).

30797018 is a wasteful number, since it uses less digits than its factorization.

30797018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 30797018 is about 5549.5061041502. The cubic root of 30797018 is about 313.4509248789.

The spelling of 30797018 in words is "thirty million, seven hundred ninety-seven thousand, eighteen".