30981298 has 8 divisors (see below), whose sum is σ = 46503792. Its totient is φ = 15480036.

The previous prime is 30981289. The next prime is 30981329. The reversal of 30981298 is 89218903.

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

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 30981298.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940 + ... + 7927.

It is an arithmetic number, because the mean of its divisors is an integer number (5812974).

Almost surely, 2^30981298 is an apocalyptic number.

30981298 is a deficient number, since it is larger than the sum of its proper divisors (15522494).

30981298 is a wasteful number, since it uses less digits than its factorization.

30981298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10616.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 30981298 is about 5566.0846202694. The cubic root of 30981298 is about 314.0748803796.

It can be divided in two parts, 3098 and 1298, that multiplied together give a palindrome (4021204).

The spelling of 30981298 in words is "thirty million, nine hundred eighty-one thousand, two hundred ninety-eight".