18888950 has 12 divisors (see below), whose sum is σ = 35133540. Its totient is φ = 7555560.

The previous prime is 18888949. The next prime is 18888959. The reversal of 18888950 is 5988881.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18888895 and 18888904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18888959) 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 5 ways as a sum of consecutive naturals, for example, 188840 + ... + 188939.

It is an arithmetic number, because the mean of its divisors is an integer number (2927795).

Almost surely, 2^18888950 is an apocalyptic number.

18888950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18888950 is a deficient number, since it is larger than the sum of its proper divisors (16244590).

18888950 is a wasteful number, since it uses less digits than its factorization.

18888950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377791 (or 377786 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 47.

The square root of 18888950 is about 4346.1419673085. The cubic root of 18888950 is about 266.3192785549.

The spelling of 18888950 in words is "eighteen million, eight hundred eighty-eight thousand, nine hundred fifty".