18948195 has 32 divisors (see below), whose sum is σ = 38499840. Its totient is φ = 8661600.

The previous prime is 18948169. The next prime is 18948197. The reversal of 18948195 is 59184981.

18948195 is a `hidden beast` number, since 1 + 89 + 481 + 95 = 666.

It is not a de Polignac number, because 18948195 - 2⁶ = 18948131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 18948195.

It is not an unprimeable number, because it can be changed into a prime (18948197) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9081 + ... + 10970.

It is an arithmetic number, because the mean of its divisors is an integer number (1203120).

Almost surely, 2^18948195 is an apocalyptic number.

18948195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18948195 is an abundant number, since it is smaller than the sum of its proper divisors (19551645).

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

18948195 is a wasteful number, since it uses less digits than its factorization.

18948195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20072 (or 20066 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 18948195 is about 4352.9524463288. The cubic root of 18948195 is about 266.5974238622.

It can be divided in two parts, 189 and 48195, that added together give a palindrome (48384).

The spelling of 18948195 in words is "eighteen million, nine hundred forty-eight thousand, one hundred ninety-five".