42080028 has 12 divisors (see below), whose sum is σ = 98186760. Its totient is φ = 14026672.

The previous prime is 42080023. The next prime is 42080029. The reversal of 42080028 is 82008024.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42080021) 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, 1753323 + ... + 1753346.

It is an arithmetic number, because the mean of its divisors is an integer number (8182230).

Almost surely, 2^42080028 is an apocalyptic number.

It is an amenable number.

42080028 is an abundant number, since it is smaller than the sum of its proper divisors (56106732).

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

42080028 is a wasteful number, since it uses less digits than its factorization.

42080028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3506676 (or 3506674 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 42080028 is about 6486.9120542828. The cubic root of 42080028 is about 347.8233017612.

The spelling of 42080028 in words is "forty-two million, eighty thousand, twenty-eight".