193042836 has 72 divisors (see below), whose sum is σ = 558964224. Its totient is φ = 55028160.

The previous prime is 193042819. The next prime is 193042853. The reversal of 193042836 is 638240391.

193042836 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (193042819) and next prime (193042853).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 193042836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 194301 + ... + 195291.

It is an arithmetic number, because the mean of its divisors is an integer number (7763392).

Almost surely, 2^193042836 is an apocalyptic number.

It is an amenable number.

193042836 is an abundant number, since it is smaller than the sum of its proper divisors (365921388).

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

193042836 is a wasteful number, since it uses less digits than its factorization.

193042836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781 (or 1776 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 193042836 is about 13893.9856052898. The cubic root of 193042836 is about 577.9424079461.

The spelling of 193042836 in words is "one hundred ninety-three million, forty-two thousand, eight hundred thirty-six".