18474071 has 16 divisors (see below), whose sum is σ = 23331840. Its totient is φ = 14208480.

The previous prime is 18474059. The next prime is 18474077. The reversal of 18474071 is 17047481.

It is not a de Polignac number, because 18474071 - 2⁶ = 18474007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18474077) 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 15 ways as a sum of consecutive naturals, for example, 4565 + ... + 7601.

It is an arithmetic number, because the mean of its divisors is an integer number (1458240).

Almost surely, 2^18474071 is an apocalyptic number.

18474071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

18474071 is a deficient number, since it is larger than the sum of its proper divisors (4857769).

18474071 is a wasteful number, since it uses less digits than its factorization.

18474071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134.

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

The square root of 18474071 is about 4298.1473916096. The cubic root of 18474071 is about 264.3550043094.

The spelling of 18474071 in words is "eighteen million, four hundred seventy-four thousand, seventy-one".