194828864 has 14 divisors (see below), whose sum is σ = 386613654. Its totient is φ = 97414400.

The previous prime is 194828861. The next prime is 194828867. The reversal of 194828864 is 468828491.

It is an interprime number because it is at equal distance from previous prime (194828861) and next prime (194828867).

It can be written as a sum of positive squares in only one way, i.e., 179774464 + 15054400 = 13408^2 + 3880^2 .

It is not an unprimeable number, because it can be changed into a prime (194828861) by changing a digit.

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 as a sum of consecutive naturals, namely, 1522037 + ... + 1522164.

It is an arithmetic number, because the mean of its divisors is an integer number (27615261).

Almost surely, 2^194828864 is an apocalyptic number.

It is an amenable number.

194828864 is a deficient number, since it is larger than the sum of its proper divisors (191784790).

194828864 is an equidigital number, since it uses as much as digits as its factorization.

194828864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3044213 (or 3044203 counting only the distinct ones).

The product of its digits is 884736, while the sum is 50.

The square root of 194828864 is about 13958.1110469863. Note that the first 3 decimals coincide. The cubic root of 194828864 is about 579.7193092868.

The spelling of 194828864 in words is "one hundred ninety-four million, eight hundred twenty-eight thousand, eight hundred sixty-four".