194617428 has 24 divisors (see below), whose sum is σ = 480820032. Its totient is φ = 61056384.

The previous prime is 194617427. The next prime is 194617439. The reversal of 194617428 is 824716491.

It is a self number, because there is not a number n which added to its sum of digits gives 194617428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194617427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476800 + ... + 477207.

It is an arithmetic number, because the mean of its divisors is an integer number (20034168).

Almost surely, 2^194617428 is an apocalyptic number.

It is an amenable number.

194617428 is an abundant number, since it is smaller than the sum of its proper divisors (286202604).

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

194617428 is a wasteful number, since it uses less digits than its factorization.

194617428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954031 (or 954029 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 194617428 is about 13950.5350435028. The cubic root of 194617428 is about 579.5095219267.

The spelling of 194617428 in words is "one hundred ninety-four million, six hundred seventeen thousand, four hundred twenty-eight".