73828188 has 36 divisors (see below), whose sum is σ = 213282160. Its totient is φ = 21093696.

The previous prime is 73828177. The next prime is 73828199. The reversal of 73828188 is 88182837.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (73828177) and next prime (73828199).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146233 + ... + 146736.

Almost surely, 2^73828188 is an apocalyptic number.

It is an amenable number.

73828188 is an abundant number, since it is smaller than the sum of its proper divisors (139453972).

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

73828188 is a wasteful number, since it uses less digits than its factorization.

73828188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292986 (or 292981 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 73828188 is about 8592.3330941020. Note that the first 3 decimals coincide. The cubic root of 73828188 is about 419.5084726073.

The spelling of 73828188 in words is "seventy-three million, eight hundred twenty-eight thousand, one hundred eighty-eight".