194253312 has 80 divisors (see below), whose sum is σ = 564597792. Its totient is φ = 58859520.

The previous prime is 194253307. The next prime is 194253313. The reversal of 194253312 is 213352491.

It is a self number, because there is not a number n which added to its sum of digits gives 194253312.

It is not an unprimeable number, because it can be changed into a prime (194253313) 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, 11148 + ... + 22644.

Almost surely, 2^194253312 is an apocalyptic number.

194253312 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 194253312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282298896).

194253312 is an abundant number, since it is smaller than the sum of its proper divisors (370344480).

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

194253312 is a wasteful number, since it uses less digits than its factorization.

194253312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11529 (or 11513 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 194253312 is about 13937.4786815980. The cubic root of 194253312 is about 579.1478886401.

The spelling of 194253312 in words is "one hundred ninety-four million, two hundred fifty-three thousand, three hundred twelve".