18343625 has 8 divisors (see below), whose sum is σ = 22893000. Its totient is φ = 14674800.

The previous prime is 18343613. The next prime is 18343639. The reversal of 18343625 is 52634381.

18343625 = 3028² + 3029².

It can be written as a sum of positive squares in 4 ways, for example, as 3125824 + 15217801 = 1768^2 + 3901^2 .

It is not a de Polignac number, because 18343625 - 2⁴ = 18343609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18343591 and 18343600.

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, 73250 + ... + 73499.

It is an arithmetic number, because the mean of its divisors is an integer number (2861625).

Almost surely, 2^18343625 is an apocalyptic number.

18343625 is the 3029-th centered square number.

It is an amenable number.

18343625 is a deficient number, since it is larger than the sum of its proper divisors (4549375).

18343625 is an equidigital number, since it uses as much as digits as its factorization.

18343625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146764 (or 146754 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 18343625 is about 4282.9458320180. The cubic root of 18343625 is about 263.7313277139.

The spelling of 18343625 in words is "eighteen million, three hundred forty-three thousand, six hundred twenty-five".