42985446 has 32 divisors (see below), whose sum is σ = 100262400. Its totient is φ = 12280968.

The previous prime is 42985441. The next prime is 42985463. The reversal of 42985446 is 64458924.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 42985398 and 42985407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42985441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8386 + ... + 12501.

It is an arithmetic number, because the mean of its divisors is an integer number (3133200).

Almost surely, 2^42985446 is an apocalyptic number.

42985446 is an abundant number, since it is smaller than the sum of its proper divisors (57276954).

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

42985446 is a wasteful number, since it uses less digits than its factorization.

42985446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20913 (or 20899 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 42985446 is about 6556.3286982884. The cubic root of 42985446 is about 350.3002756441.

The spelling of 42985446 in words is "forty-two million, nine hundred eighty-five thousand, four hundred forty-six".