42026628 has 24 divisors (see below), whose sum is σ = 112071232. Its totient is φ = 12007584.

The previous prime is 42026627. The next prime is 42026629. The reversal of 42026628 is 82662024.

It is an interprime number because it is at equal distance from previous prime (42026627) and next prime (42026629).

It is a super-2 number, since 2×42026628² = 3532474922100768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42026595 and 42026604.

It is not an unprimeable number, because it can be changed into a prime (42026627) 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, 250075 + ... + 250242.

Almost surely, 2^42026628 is an apocalyptic number.

It is an amenable number.

42026628 is an abundant number, since it is smaller than the sum of its proper divisors (70044604).

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

42026628 is a wasteful number, since it uses less digits than its factorization.

42026628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500331 (or 500329 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 42026628 is about 6482.7947676909. The cubic root of 42026628 is about 347.6761089993.

The spelling of 42026628 in words is "forty-two million, twenty-six thousand, six hundred twenty-eight".