194428684 has 12 divisors (see below), whose sum is σ = 340462584. Its totient is φ = 97153664.

The previous prime is 194428669. The next prime is 194428697. The reversal of 194428684 is 486824491.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7534 + ... + 21109.

It is an arithmetic number, because the mean of its divisors is an integer number (28371882).

Almost surely, 2^194428684 is an apocalyptic number.

It is an amenable number.

194428684 is a deficient number, since it is larger than the sum of its proper divisors (146033900).

194428684 is a wasteful number, since it uses less digits than its factorization.

194428684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30344 (or 30342 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 194428684 is about 13943.7686440933. The cubic root of 194428684 is about 579.3221212320.

It can be divided in two parts, 194428 and 684, that added together give a cube (195112 = 58³).

The spelling of 194428684 in words is "one hundred ninety-four million, four hundred twenty-eight thousand, six hundred eighty-four".