18481352 has 32 divisors (see below), whose sum is σ = 36833400. Its totient is φ = 8676864.

The previous prime is 18481321. The next prime is 18481369. The reversal of 18481352 is 25318481.

It can be written as a sum of positive squares in 4 ways, for example, as 15570916 + 2910436 = 3946^2 + 1706^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7508 + ... + 9660.

Almost surely, 2^18481352 is an apocalyptic number.

It is an amenable number.

18481352 is a deficient number, since it is larger than the sum of its proper divisors (18352048).

18481352 is a wasteful number, since it uses less digits than its factorization.

18481352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225 (or 2221 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 18481352 is about 4298.9943009965. The cubic root of 18481352 is about 264.3897289419.

The spelling of 18481352 in words is "eighteen million, four hundred eighty-one thousand, three hundred fifty-two".