30981074 has 8 divisors (see below), whose sum is σ = 46530288. Its totient is φ = 15470980.

The previous prime is 30981073. The next prime is 30981103. The reversal of 30981074 is 47018903.

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 30981074.

It is not an unprimeable number, because it can be changed into a prime (30981073) 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, 7712 + ... + 11019.

It is an arithmetic number, because the mean of its divisors is an integer number (5816286).

Almost surely, 2^30981074 is an apocalyptic number.

30981074 is a deficient number, since it is larger than the sum of its proper divisors (15549214).

30981074 is a wasteful number, since it uses less digits than its factorization.

30981074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19560.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 30981074 is about 5566.0644983687. The cubic root of 30981074 is about 314.0741234397.

Adding to 30981074 its reverse (47018903), we get a palindrome (77999977).

The spelling of 30981074 in words is "thirty million, nine hundred eighty-one thousand, seventy-four".