18706048 has 16 divisors (see below), whose sum is σ = 37266210. Its totient is φ = 9352960.

The previous prime is 18706027. The next prime is 18706049. The reversal of 18706048 is 84060781.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11778624 + 6927424 = 3432^2 + 2632^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (18706049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72943 + ... + 73198.

Almost surely, 2^18706048 is an apocalyptic number.

It is an amenable number.

18706048 is a deficient number, since it is larger than the sum of its proper divisors (18560162).

18706048 is an equidigital number, since it uses as much as digits as its factorization.

18706048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146155 (or 146143 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 18706048 is about 4325.0489014576. The cubic root of 18706048 is about 265.4568977995.

The spelling of 18706048 in words is "eighteen million, seven hundred six thousand, forty-eight".