42628135 has 8 divisors (see below), whose sum is σ = 55804176. Its totient is φ = 31002240.

The previous prime is 42628133. The next prime is 42628171. The reversal of 42628135 is 53182624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42628135 - 2¹ = 42628133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42628097 and 42628106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42628133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387474 + ... + 387583.

It is an arithmetic number, because the mean of its divisors is an integer number (6975522).

Almost surely, 2^42628135 is an apocalyptic number.

42628135 is a deficient number, since it is larger than the sum of its proper divisors (13176041).

42628135 is a wasteful number, since it uses less digits than its factorization.

42628135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775073.

The product of its digits is 11520, while the sum is 31.

The square root of 42628135 is about 6529.0225148946. The cubic root of 42628135 is about 349.3269651160.

It can be divided in two parts, 426 and 28135, that added together give a 4-th power (28561 = 13⁴).

The spelling of 42628135 in words is "forty-two million, six hundred twenty-eight thousand, one hundred thirty-five".