18484665 has 16 divisors (see below), whose sum is σ = 29774976. Its totient is φ = 9792000.

The previous prime is 18484643. The next prime is 18484667. The reversal of 18484665 is 56648481.

It is not a de Polignac number, because 18484665 - 2⁶ = 18484601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18484667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1816 + ... + 6345.

It is an arithmetic number, because the mean of its divisors is an integer number (1860936).

Almost surely, 2^18484665 is an apocalyptic number.

18484665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18484665 is a deficient number, since it is larger than the sum of its proper divisors (11290311).

18484665 is a wasteful number, since it uses less digits than its factorization.

18484665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8320.

The product of its digits is 184320, while the sum is 42.

The square root of 18484665 is about 4299.3796064083. The cubic root of 18484665 is about 264.4055263221.

The spelling of 18484665 in words is "eighteen million, four hundred eighty-four thousand, six hundred sixty-five".