18470208 has 28 divisors (see below), whose sum is σ = 48869600. Its totient is φ = 6156672.

The previous prime is 18470197. The next prime is 18470209. The reversal of 18470208 is 80207481.

It is a super-2 number, since 2×18470208² = 682297167126528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18470209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47908 + ... + 48291.

Almost surely, 2^18470208 is an apocalyptic number.

It is an amenable number.

18470208 is an abundant number, since it is smaller than the sum of its proper divisors (30399392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18470208 is an equidigital number, since it uses as much as digits as its factorization.

18470208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96214 (or 96204 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 18470208 is about 4297.6979884585. The cubic root of 18470208 is about 264.3365771389.

Adding to 18470208 its reverse (80207481), we get a palindrome (98677689).

The spelling of 18470208 in words is "eighteen million, four hundred seventy thousand, two hundred eight".