42003249 has 8 divisors (see below), whose sum is σ = 56380800. Its totient is φ = 27813936.

The previous prime is 42003239. The next prime is 42003253. The reversal of 42003249 is 94230024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42003249 - 2⁸ = 42002993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42003239) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 46537 + ... + 47430.

It is an arithmetic number, because the mean of its divisors is an integer number (7047600).

Almost surely, 2^42003249 is an apocalyptic number.

It is an amenable number.

42003249 is a deficient number, since it is larger than the sum of its proper divisors (14377551).

42003249 is a wasteful number, since it uses less digits than its factorization.

42003249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94119.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 42003249 is about 6480.9913593524. The cubic root of 42003249 is about 347.6116274405.

The spelling of 42003249 in words is "forty-two million, three thousand, two hundred forty-nine".