18224074 has 16 divisors (see below), whose sum is σ = 29984256. Its totient is φ = 8238400.

The previous prime is 18224071. The next prime is 18224077. The reversal of 18224074 is 47042281.

It is an interprime number because it is at equal distance from previous prime (18224071) and next prime (18224077).

It is not an unprimeable number, because it can be changed into a prime (18224071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2034 + ... + 6370.

It is an arithmetic number, because the mean of its divisors is an integer number (1874016).

Almost surely, 2^18224074 is an apocalyptic number.

18224074 is a deficient number, since it is larger than the sum of its proper divisors (11760182).

18224074 is a wasteful number, since it uses less digits than its factorization.

18224074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4541.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 18224074 is about 4268.9663854380. The cubic root of 18224074 is about 263.1571393424.

The spelling of 18224074 in words is "eighteen million, two hundred twenty-four thousand, seventy-four".