30118493 has 8 divisors (see below), whose sum is σ = 30898560. Its totient is φ = 29344320.

The previous prime is 30118463. The next prime is 30118499. The reversal of 30118493 is 39481103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30118493 - 2¹⁸ = 29856349 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 (30118499) 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, 9998 + ... + 12656.

It is an arithmetic number, because the mean of its divisors is an integer number (3862320).

Almost surely, 2^30118493 is an apocalyptic number.

It is an amenable number.

30118493 is a deficient number, since it is larger than the sum of its proper divisors (780067).

30118493 is a wasteful number, since it uses less digits than its factorization.

30118493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 30118493 is about 5488.0317965551. The cubic root of 30118493 is about 311.1318079438.

Adding to 30118493 its reverse (39481103), we get a palindrome (69599596).

The spelling of 30118493 in words is "thirty million, one hundred eighteen thousand, four hundred ninety-three".