18006950 has 36 divisors (see below), whose sum is σ = 36284508. Its totient is φ = 6645600.

The previous prime is 18006943. The next prime is 18006971. The reversal of 18006950 is 5960081.

It is a congruent 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 17 ways as a sum of consecutive naturals, for example, 7385 + ... + 9515.

It is an arithmetic number, because the mean of its divisors is an integer number (1007903).

Almost surely, 2^18006950 is an apocalyptic number.

18006950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18006950 is an abundant number, since it is smaller than the sum of its proper divisors (18277558).

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

18006950 is a wasteful number, since it uses less digits than its factorization.

18006950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169 (or 2151 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 18006950 is about 4243.4596734269. The cubic root of 18006950 is about 262.1078649930.

The spelling of 18006950 in words is "eighteen million, six thousand, nine hundred fifty".