18485610 has 128 divisors (see below), whose sum is σ = 54190080. Its totient is φ = 3974400.

The previous prime is 18485603. The next prime is 18485611. The reversal of 18485610 is 1658481.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (18485611) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 132921 + ... + 133059.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 2^18485610 is an apocalyptic number.

18485610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18485610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27095040).

18485610 is an abundant number, since it is smaller than the sum of its proper divisors (35704470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18485610 is a wasteful number, since it uses less digits than its factorization.

18485610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 18485610 is about 4299.4895045807. The cubic root of 18485610 is about 264.4100320203.

The spelling of 18485610 in words is "eighteen million, four hundred eighty-five thousand, six hundred ten".