30117474 has 16 divisors (see below), whose sum is σ = 66927840. Its totient is φ = 10039140.

The previous prime is 30117473. The next prime is 30117491. The reversal of 30117474 is 47471103.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30117473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278812 + ... + 278919.

It is an arithmetic number, because the mean of its divisors is an integer number (4182990).

Almost surely, 2^30117474 is an apocalyptic number.

30117474 is an abundant number, since it is smaller than the sum of its proper divisors (36810366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30117474 is a wasteful number, since it uses less digits than its factorization.

30117474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557742 (or 557736 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 30117474 is about 5487.9389573865. The cubic root of 30117474 is about 311.1282990598.

Adding to 30117474 its reverse (47471103), we get a palindrome (77588577).

The spelling of 30117474 in words is "thirty million, one hundred seventeen thousand, four hundred seventy-four".