194621028 has 96 divisors (see below), whose sum is σ = 549964800. Its totient is φ = 52327296.

The previous prime is 194620991. The next prime is 194621033. The reversal of 194621028 is 820126491.

It is a self number, because there is not a number n which added to its sum of digits gives 194621028.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314103 + ... + 314721.

It is an arithmetic number, because the mean of its divisors is an integer number (5728800).

Almost surely, 2^194621028 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 194621028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274982400).

194621028 is an abundant number, since it is smaller than the sum of its proper divisors (355343772).

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

194621028 is a wasteful number, since it uses less digits than its factorization.

194621028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 194621028 is about 13950.6640702154. The cubic root of 194621028 is about 579.5130951274.

The spelling of 194621028 in words is "one hundred ninety-four million, six hundred twenty-one thousand, twenty-eight".