18612248 has 16 divisors (see below), whose sum is σ = 36735000. Its totient is φ = 8816256.

The previous prime is 18612233. The next prime is 18612257. The reversal of 18612248 is 84221681.

It is a happy number.

It is a super-2 number, since 2×18612248² = 692831551227008, which contains 22 as substring.

It is a congruent number.

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, 61073 + ... + 61376.

Almost surely, 2^18612248 is an apocalyptic number.

It is an amenable number.

18612248 is a deficient number, since it is larger than the sum of its proper divisors (18122752).

18612248 is a wasteful number, since it uses less digits than its factorization.

18612248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122474 (or 122470 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 18612248 is about 4314.1914653849. The cubic root of 18612248 is about 265.0124498720.

The spelling of 18612248 in words is "eighteen million, six hundred twelve thousand, two hundred forty-eight".