42503646 has 16 divisors (see below), whose sum is σ = 89481600. Its totient is φ = 13422168.

The previous prime is 42503633. The next prime is 42503749. The reversal of 42503646 is 64630524.

42503646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

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, 186306 + ... + 186533.

It is an arithmetic number, because the mean of its divisors is an integer number (5592600).

Almost surely, 2^42503646 is an apocalyptic number.

42503646 is an abundant number, since it is smaller than the sum of its proper divisors (46977954).

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

42503646 is a wasteful number, since it uses less digits than its factorization.

42503646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372863.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 42503646 is about 6519.4820346405. The cubic root of 42503646 is about 348.9865814224.

The spelling of 42503646 in words is "forty-two million, five hundred three thousand, six hundred forty-six".