42234128 has 10 divisors (see below), whose sum is σ = 81828654. Its totient is φ = 21117056.

The previous prime is 42234113. The next prime is 42234151. The reversal of 42234128 is 82143224.

It can be written as a sum of positive squares in only one way, i.e., 36626704 + 5607424 = 6052^2 + 2368^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42234097 and 42234106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319801 + ... + 1319832.

Almost surely, 2^42234128 is an apocalyptic number.

It is an amenable number.

42234128 is a deficient number, since it is larger than the sum of its proper divisors (39594526).

42234128 is a wasteful number, since it uses less digits than its factorization.

42234128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639641 (or 2639635 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 42234128 is about 6498.7789622359. The cubic root of 42234128 is about 348.2473689310.

The spelling of 42234128 in words is "forty-two million, two hundred thirty-four thousand, one hundred twenty-eight".