42403030 has 32 divisors (see below), whose sum is σ = 80434944. Its totient is φ = 16062816.

The previous prime is 42403019. The next prime is 42403033. The reversal of 42403030 is 3030424.

It is a junction number, because it is equal to n+sod(n) for n = 42402995 and 42403013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42403033) 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 15 ways as a sum of consecutive naturals, for example, 23749 + ... + 25471.

It is an arithmetic number, because the mean of its divisors is an integer number (2513592).

Almost surely, 2^42403030 is an apocalyptic number.

42403030 is a deficient number, since it is larger than the sum of its proper divisors (38031914).

42403030 is a wasteful number, since it uses less digits than its factorization.

42403030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 42403030 is about 6511.7608985589. The cubic root of 42403030 is about 348.7109864162.

Adding to 42403030 its reverse (3030424), we get a palindrome (45433454).

The spelling of 42403030 in words is "forty-two million, four hundred three thousand, thirty".