18450650 has 12 divisors (see below), whose sum is σ = 34318302. Its totient is φ = 7380240.

The previous prime is 18450647. The next prime is 18450667. The reversal of 18450650 is 5605481.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 14070001 + 4380649 = 3751^2 + 2093^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 184457 + ... + 184556.

Almost surely, 2^18450650 is an apocalyptic number.

18450650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18450650 is a deficient number, since it is larger than the sum of its proper divisors (15867652).

18450650 is a wasteful number, since it uses less digits than its factorization.

18450650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369025 (or 369020 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 18450650 is about 4295.4219815985. The cubic root of 18450650 is about 264.2432426794.

The spelling of 18450650 in words is "eighteen million, four hundred fifty thousand, six hundred fifty".