18147074 has 16 divisors (see below), whose sum is σ = 29992896. Its totient is φ = 8166000.

The previous prime is 18147053. The next prime is 18147089. The reversal of 18147074 is 47074181.

It is a super-2 number, since 2×18147074² = 658632589522952, which contains 22 as substring.

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 18147074.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1862 + ... + 6305.

It is an arithmetic number, because the mean of its divisors is an integer number (1874556).

Almost surely, 2^18147074 is an apocalyptic number.

18147074 is a deficient number, since it is larger than the sum of its proper divisors (11845822).

18147074 is a wasteful number, since it uses less digits than its factorization.

18147074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8281.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 18147074 is about 4259.9382624634. The cubic root of 18147074 is about 262.7859873280.

It can be divided in two parts, 1814 and 7074, that added together give a palindrome (8888).

The spelling of 18147074 in words is "eighteen million, one hundred forty-seven thousand, seventy-four".