18474625 has 16 divisors (see below), whose sum is σ = 24832080. Its totient is φ = 13641600.

The previous prime is 18474623. The next prime is 18474637. The reversal of 18474625 is 52647481.

It can be written as a sum of positive squares in 8 ways, for example, as 8814961 + 9659664 = 2969^2 + 3108^2 .

It is not a de Polignac number, because 18474625 - 2¹ = 18474623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18474623) 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 15 ways as a sum of consecutive naturals, for example, 4060 + ... + 7309.

It is an arithmetic number, because the mean of its divisors is an integer number (1552005).

Almost surely, 2^18474625 is an apocalyptic number.

It is an amenable number.

18474625 is a deficient number, since it is larger than the sum of its proper divisors (6357455).

18474625 is a wasteful number, since it uses less digits than its factorization.

18474625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11397 (or 11387 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 18474625 is about 4298.2118374971. The cubic root of 18474625 is about 264.3576467735.

The spelling of 18474625 in words is "eighteen million, four hundred seventy-four thousand, six hundred twenty-five".