18649150 has 36 divisors (see below), whose sum is σ = 37577952. Its totient is φ = 6882720.

The previous prime is 18649129. The next prime is 18649151. The reversal of 18649150 is 5194681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18649151) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 7347 + ... + 9553.

It is an arithmetic number, because the mean of its divisors is an integer number (1043832).

Almost surely, 2^18649150 is an apocalyptic number.

18649150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18649150 is an abundant number, since it is smaller than the sum of its proper divisors (18928802).

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

18649150 is a wasteful number, since it uses less digits than its factorization.

18649150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245 (or 2227 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 18649150 is about 4318.4661628870. The cubic root of 18649150 is about 265.1874785835.

The spelling of 18649150 in words is "eighteen million, six hundred forty-nine thousand, one hundred fifty".