193334428 has 12 divisors (see below), whose sum is σ = 386668912. Its totient is φ = 82857600.

The previous prime is 193334423. The next prime is 193334429. The reversal of 193334428 is 824433391.

193334428 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193334423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3452373 + ... + 3452428.

Almost surely, 2^193334428 is an apocalyptic number.

It is an amenable number.

193334428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

193334428 is a wasteful number, since it uses less digits than its factorization.

193334428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6904812 (or 6904810 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 193334428 is about 13904.4751069575. The cubic root of 193334428 is about 578.2332563496.

The spelling of 193334428 in words is "one hundred ninety-three million, three hundred thirty-four thousand, four hundred twenty-eight".