42216003 has 6 divisors (see below), whose sum is σ = 60978684. Its totient is φ = 28143996.

The previous prime is 42215989. The next prime is 42216007. The reversal of 42216003 is 30061224.

It is a happy number.

42216003 is a `hidden beast` number, since 42 + 21 + 600 + 3 = 666.

It is not a de Polignac number, because 42216003 - 2⁶ = 42215939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42216007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2345325 + ... + 2345342.

It is an arithmetic number, because the mean of its divisors is an integer number (10163114).

Almost surely, 2^42216003 is an apocalyptic number.

42216003 is a deficient number, since it is larger than the sum of its proper divisors (18762681).

42216003 is a wasteful number, since it uses less digits than its factorization.

42216003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4690673 (or 4690670 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 42216003 is about 6497.3843198629. The cubic root of 42216003 is about 348.1975444011.

Adding to 42216003 its reverse (30061224), we get a palindrome (72277227).

The spelling of 42216003 in words is "forty-two million, two hundred sixteen thousand, three".