42449982 has 16 divisors (see below), whose sum is σ = 85216512. Its totient is φ = 14097240.

The previous prime is 42449963. The next prime is 42450007. The reversal of 42449982 is 28994424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11428 + ... + 14679.

It is an arithmetic number, because the mean of its divisors is an integer number (5326032).

Almost surely, 2^42449982 is an apocalyptic number.

42449982 is an abundant number, since it is smaller than the sum of its proper divisors (42766530).

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

42449982 is a wasteful number, since it uses less digits than its factorization.

42449982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26383.

The product of its digits is 165888, while the sum is 42.

The square root of 42449982 is about 6515.3650703548. The cubic root of 42449982 is about 348.8396457668.

It can be divided in two parts, 424499 and 82, that added together give a triangular number (424581 = T₉₂₁).

The spelling of 42449982 in words is "forty-two million, four hundred forty-nine thousand, nine hundred eighty-two".