42499641 has 8 divisors (see below), whose sum is σ = 57512224. Its totient is φ = 27910080.

The previous prime is 42499631. The next prime is 42499687. The reversal of 42499641 is 14699424.

42499641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42499641 - 2¹¹ = 42497593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42499641.

It is not an unprimeable number, because it can be changed into a prime (42499631) 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 7 ways as a sum of consecutive naturals, for example, 105520 + ... + 105921.

It is an arithmetic number, because the mean of its divisors is an integer number (7189028).

Almost surely, 2^42499641 is an apocalyptic number.

It is an amenable number.

42499641 is a deficient number, since it is larger than the sum of its proper divisors (15012583).

42499641 is a wasteful number, since it uses less digits than its factorization.

42499641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211511.

The product of its digits is 62208, while the sum is 39.

The square root of 42499641 is about 6519.1748711014. The cubic root of 42499641 is about 348.9756197340.

The spelling of 42499641 in words is "forty-two million, four hundred ninety-nine thousand, six hundred forty-one".