42803872 has 12 divisors (see below), whose sum is σ = 84270186. Its totient is φ = 21401920.

The previous prime is 42803861. The next prime is 42803879. The reversal of 42803872 is 27830824.

It can be written as a sum of positive squares in only one way, i.e., 36433296 + 6370576 = 6036^2 + 2524^2 .

It is not an unprimeable number, because it can be changed into a prime (42803879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 668779 + ... + 668842.

Almost surely, 2^42803872 is an apocalyptic number.

It is an amenable number.

42803872 is a deficient number, since it is larger than the sum of its proper divisors (41466314).

42803872 is a wasteful number, since it uses less digits than its factorization.

42803872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337631 (or 1337623 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 42803872 is about 6542.4668130607. The cubic root of 42803872 is about 349.8063472948.

The spelling of 42803872 in words is "forty-two million, eight hundred three thousand, eight hundred seventy-two".