42944550 has 96 divisors (see below), whose sum is σ = 123099264. Its totient is φ = 9792000.

The previous prime is 42944543. The next prime is 42944569. The reversal of 42944550 is 5544924.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 27285 + ... + 28815.

It is an arithmetic number, because the mean of its divisors is an integer number (1282284).

Almost surely, 2^42944550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42944550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61549632).

42944550 is an abundant number, since it is smaller than the sum of its proper divisors (80154714).

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

42944550 is a wasteful number, since it uses less digits than its factorization.

42944550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 42944550 is about 6553.2091375142. The cubic root of 42944550 is about 350.1891494608.

The spelling of 42944550 in words is "forty-two million, nine hundred forty-four thousand, five hundred fifty".