42503028 has 12 divisors (see below), whose sum is σ = 99173760. Its totient is φ = 14167672.

The previous prime is 42503023. The next prime is 42503051. The reversal of 42503028 is 82030524.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 42502989 and 42503007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42503023) 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 3 ways as a sum of consecutive naturals, for example, 1770948 + ... + 1770971.

It is an arithmetic number, because the mean of its divisors is an integer number (8264480).

Almost surely, 2^42503028 is an apocalyptic number.

It is an amenable number.

42503028 is an abundant number, since it is smaller than the sum of its proper divisors (56670732).

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

42503028 is a wasteful number, since it uses less digits than its factorization.

42503028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3541926 (or 3541924 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 42503028 is about 6519.4346380649. The cubic root of 42503028 is about 348.9848900008.

The spelling of 42503028 in words is "forty-two million, five hundred three thousand, twenty-eight".