194485220 has 24 divisors (see below), whose sum is σ = 411542208. Its totient is φ = 77199200.

The previous prime is 194485211. The next prime is 194485229. The reversal of 194485220 is 22584491.

It is an interprime number because it is at equal distance from previous prime (194485211) and next prime (194485229).

It is not an unprimeable number, because it can be changed into a prime (194485229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34496 + ... + 39735.

It is an arithmetic number, because the mean of its divisors is an integer number (17147592).

Almost surely, 2^194485220 is an apocalyptic number.

194485220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194485220 is an abundant number, since it is smaller than the sum of its proper divisors (217056988).

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

194485220 is a wasteful number, since it uses less digits than its factorization.

194485220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74371 (or 74369 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 194485220 is about 13945.7957822420. The cubic root of 194485220 is about 579.3782675795.

The spelling of 194485220 in words is "one hundred ninety-four million, four hundred eighty-five thousand, two hundred twenty".