193742808 has 64 divisors (see below), whose sum is σ = 571422720. Its totient is φ = 53568000.

The previous prime is 193742807. The next prime is 193742827. The reversal of 193742808 is 808247391.

193742808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 193742808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193742807) 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, 13393 + ... + 23808.

It is an arithmetic number, because the mean of its divisors is an integer number (8928480).

Almost surely, 2^193742808 is an apocalyptic number.

It is an amenable number.

193742808 is an abundant number, since it is smaller than the sum of its proper divisors (377679912).

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

193742808 is a wasteful number, since it uses less digits than its factorization.

193742808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37248 (or 37244 counting only the distinct ones).

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

The square root of 193742808 is about 13919.1525604111. The cubic root of 193742808 is about 578.6401037474.

The spelling of 193742808 in words is "one hundred ninety-three million, seven hundred forty-two thousand, eight hundred eight".