194728512 has 112 divisors (see below), whose sum is σ = 567001152. Its totient is φ = 58490880.

The previous prime is 194728483. The next prime is 194728517. The reversal of 194728512 is 215827491.

It is not an unprimeable number, because it can be changed into a prime (194728517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289008 + ... + 289680.

Almost surely, 2^194728512 is an apocalyptic number.

194728512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194728512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283500576).

194728512 is an abundant number, since it is smaller than the sum of its proper divisors (372272640).

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

194728512 is a wasteful number, since it uses less digits than its factorization.

194728512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836 (or 826 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 194728512 is about 13954.5158282185. The cubic root of 194728512 is about 579.6197586997.

The spelling of 194728512 in words is "one hundred ninety-four million, seven hundred twenty-eight thousand, five hundred twelve".