42003056 has 20 divisors (see below), whose sum is σ = 86168592. Its totient is φ = 19766016.

The previous prime is 42003023. The next prime is 42003061. The reversal of 42003056 is 65030024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76940 + ... + 77483.

Almost surely, 2^42003056 is an apocalyptic number.

It is an amenable number.

42003056 is an abundant number, since it is smaller than the sum of its proper divisors (44165536).

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

42003056 is a wasteful number, since it uses less digits than its factorization.

42003056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154448 (or 154442 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 42003056 is about 6480.9764696379. The cubic root of 42003056 is about 347.6110950282.

The spelling of 42003056 in words is "forty-two million, three thousand, fifty-six".