194941220 has 12 divisors (see below), whose sum is σ = 409376604. Its totient is φ = 77976480.

The previous prime is 194941217. The next prime is 194941247. The reversal of 194941220 is 22149491.

It can be written as a sum of positive squares in 2 ways, for example, as 122589184 + 72352036 = 11072^2 + 8506^2 .

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 3 ways as a sum of consecutive naturals, for example, 4873511 + ... + 4873550.

It is an arithmetic number, because the mean of its divisors is an integer number (34114717).

Almost surely, 2^194941220 is an apocalyptic number.

194941220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194941220 is an abundant number, since it is smaller than the sum of its proper divisors (214435384).

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

194941220 is a wasteful number, since it uses less digits than its factorization.

194941220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9747070 (or 9747068 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 194941220 is about 13962.1352235251. The cubic root of 194941220 is about 579.8307274557.

The spelling of 194941220 in words is "one hundred ninety-four million, nine hundred forty-one thousand, two hundred twenty".