42973072 has 10 divisors (see below), whose sum is σ = 83260358. Its totient is φ = 21486528.

The previous prime is 42973057. The next prime is 42973153. The reversal of 42973072 is 27037924.

It can be written as a sum of positive squares in only one way, i.e., 36192256 + 6780816 = 6016^2 + 2604^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342893 + ... + 1342924.

Almost surely, 2^42973072 is an apocalyptic number.

It is an amenable number.

42973072 is a deficient number, since it is larger than the sum of its proper divisors (40287286).

42973072 is a wasteful number, since it uses less digits than its factorization.

42973072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685825 (or 2685819 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 42973072 is about 6555.3849619988. The cubic root of 42973072 is about 350.2666593700.

The spelling of 42973072 in words is "forty-two million, nine hundred seventy-three thousand, seventy-two".