42449004 has 36 divisors (see below), whose sum is σ = 115556896. Its totient is φ = 13061088.

The previous prime is 42449003. The next prime is 42449087. The reversal of 42449004 is 40094424.

42449004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (42449003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44884 + ... + 45819.

Almost surely, 2^42449004 is an apocalyptic number.

It is an amenable number.

42449004 is an abundant number, since it is smaller than the sum of its proper divisors (73107892).

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

42449004 is a wasteful number, since it uses less digits than its factorization.

42449004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90726 (or 90721 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 42449004 is about 6515.2900165687. The cubic root of 42449004 is about 348.8369667880.

The spelling of 42449004 in words is "forty-two million, four hundred forty-nine thousand, four".