42089072 has 20 divisors (see below), whose sum is σ = 84179136. Its totient is φ = 20365440.

The previous prime is 42089071. The next prime is 42089081. The reversal of 42089072 is 27098024.

42089072 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42089071) 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, 41933 + ... + 42924.

Almost surely, 2^42089072 is an apocalyptic number.

It is an amenable number.

42089072 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42089072 is a wasteful number, since it uses less digits than its factorization.

42089072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84896 (or 84890 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 42089072 is about 6487.6091127626. The cubic root of 42089072 is about 347.8482184795.

The spelling of 42089072 in words is "forty-two million, eighty-nine thousand, seventy-two".