42944900 has 18 divisors (see below), whose sum is σ = 93190650. Its totient is φ = 17177920.

The previous prime is 42944899. The next prime is 42944977. The reversal of 42944900 is 944924.

It can be written as a sum of positive squares in 3 ways, for example, as 538756 + 42406144 = 734^2 + 6512^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 214625 + ... + 214824.

Almost surely, 2^42944900 is an apocalyptic number.

It is an amenable number.

42944900 is an abundant number, since it is smaller than the sum of its proper divisors (50245750).

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

42944900 is a wasteful number, since it uses less digits than its factorization.

42944900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429463 (or 429456 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 42944900 is about 6553.2358419334. The cubic root of 42944900 is about 350.1901008106.

The spelling of 42944900 in words is "forty-two million, nine hundred forty-four thousand, nine hundred".