18485650 has 24 divisors (see below), whose sum is σ = 34501140. Its totient is φ = 7368960.

The previous prime is 18485633. The next prime is 18485653. The reversal of 18485650 is 5658481.

It can be written as a sum of positive squares in 6 ways, for example, as 14130081 + 4355569 = 3759^2 + 2087^2 .

It is not an unprimeable number, because it can be changed into a prime (18485653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22446 + ... + 23254.

Almost surely, 2^18485650 is an apocalyptic number.

18485650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18485650 is a deficient number, since it is larger than the sum of its proper divisors (16015490).

18485650 is a wasteful number, since it uses less digits than its factorization.

18485650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278 (or 1273 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 18485650 is about 4299.4941562933. The cubic root of 18485650 is about 264.4102227343.

The spelling of 18485650 in words is "eighteen million, four hundred eighty-five thousand, six hundred fifty".