18485465 has 8 divisors (see below), whose sum is σ = 22723848. Its totient is φ = 14427520.

The previous prime is 18485449. The next prime is 18485473. The reversal of 18485465 is 56458481.

It can be written as a sum of positive squares in 4 ways, for example, as 1708249 + 16777216 = 1307^2 + 4096^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18485465 - 2⁴ = 18485449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44882 + ... + 45291.

It is an arithmetic number, because the mean of its divisors is an integer number (2840481).

Almost surely, 2^18485465 is an apocalyptic number.

It is an amenable number.

18485465 is a deficient number, since it is larger than the sum of its proper divisors (4238383).

18485465 is an equidigital number, since it uses as much as digits as its factorization.

18485465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90219.

The product of its digits is 153600, while the sum is 41.

The square root of 18485465 is about 4299.4726420807. The cubic root of 18485465 is about 264.4093406798.

The spelling of 18485465 in words is "eighteen million, four hundred eighty-five thousand, four hundred sixty-five".