193043428 has 12 divisors (see below), whose sum is σ = 338415532. Its totient is φ = 96353280.

The previous prime is 193043423. The next prime is 193043443. The reversal of 193043428 is 824340391.

193043428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 88962624 + 104080804 = 9432^2 + 10202^2 .

It is a junction number, because it is equal to n+sod(n) for n = 193043393 and 193043402.

It is not an unprimeable number, because it can be changed into a prime (193043423) 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, 39513 + ... + 44128.

Almost surely, 2^193043428 is an apocalyptic number.

It is an amenable number.

193043428 is a deficient number, since it is larger than the sum of its proper divisors (145372104).

193043428 is a wasteful number, since it uses less digits than its factorization.

193043428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84222 (or 84220 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 193043428 is about 13894.0069094556. The cubic root of 193043428 is about 577.9429987330.

The spelling of 193043428 in words is "one hundred ninety-three million, forty-three thousand, four hundred twenty-eight".