194601988 has 48 divisors (see below), whose sum is σ = 407635200. Its totient is φ = 79478784.

The previous prime is 194601959. The next prime is 194602003. The reversal of 194601988 is 889106491.

It is a Harshad number since it is a multiple of its sum of digits (46).

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 15 ways as a sum of consecutive naturals, for example, 288820 + ... + 289492.

It is an arithmetic number, because the mean of its divisors is an integer number (8492400).

Almost surely, 2^194601988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194601988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203817600).

194601988 is an abundant number, since it is smaller than the sum of its proper divisors (213033212).

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

194601988 is a wasteful number, since it uses less digits than its factorization.

194601988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 194601988 is about 13949.9816487334. The cubic root of 194601988 is about 579.4941963659.

The spelling of 194601988 in words is "one hundred ninety-four million, six hundred one thousand, nine hundred eighty-eight".