18485769 has 8 divisors (see below), whose sum is σ = 25015840. Its totient is φ = 12139776.

The previous prime is 18485759. The next prime is 18485771. The reversal of 18485769 is 96758481.

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

It is not a de Polignac number, because 18485769 - 2¹¹ = 18483721 is a prime.

It is a super-2 number, since 2×18485769² = 683447311042722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18485759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45784 + ... + 46185.

It is an arithmetic number, because the mean of its divisors is an integer number (3126980).

Almost surely, 2^18485769 is an apocalyptic number.

It is an amenable number.

18485769 is a deficient number, since it is larger than the sum of its proper divisors (6530071).

18485769 is an equidigital number, since it uses as much as digits as its factorization.

18485769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92039.

The product of its digits is 483840, while the sum is 48.

The square root of 18485769 is about 4299.5079951083. The cubic root of 18485769 is about 264.4107901068.

The spelling of 18485769 in words is "eighteen million, four hundred eighty-five thousand, seven hundred sixty-nine".