18620324 has 12 divisors (see below), whose sum is σ = 33466524. Its totient is φ = 9058464.

The previous prime is 18620297. The next prime is 18620339. The reversal of 18620324 is 42302681.

It can be written as a sum of positive squares in 2 ways, for example, as 7182400 + 11437924 = 2680^2 + 3382^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18620293 and 18620302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62759 + ... + 63054.

It is an arithmetic number, because the mean of its divisors is an integer number (2788877).

Almost surely, 2^18620324 is an apocalyptic number.

It is an amenable number.

18620324 is a deficient number, since it is larger than the sum of its proper divisors (14846200).

18620324 is a wasteful number, since it uses less digits than its factorization.

18620324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125854 (or 125852 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 18620324 is about 4315.1273445867. The cubic root of 18620324 is about 265.0507746544.

The spelling of 18620324 in words is "eighteen million, six hundred twenty thousand, three hundred twenty-four".