42089972 has 6 divisors (see below), whose sum is σ = 73657458. Its totient is φ = 21044984.

The previous prime is 42089963. The next prime is 42090017. The reversal of 42089972 is 27998024.

42089972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 32330596 + 9759376 = 5686^2 + 3124^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5261243 + ... + 5261250.

It is an arithmetic number, because the mean of its divisors is an integer number (12276243).

Almost surely, 2^42089972 is an apocalyptic number.

It is an amenable number.

42089972 is a deficient number, since it is larger than the sum of its proper divisors (31567486).

42089972 is a wasteful number, since it uses less digits than its factorization.

42089972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10522497 (or 10522495 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 42089972 is about 6487.6784753870. The cubic root of 42089972 is about 347.8506978338.

The spelling of 42089972 in words is "forty-two million, eighty-nine thousand, nine hundred seventy-two".