42242803 has 2 divisors, whose sum is σ = 42242804. Its totient is φ = 42242802.

The previous prime is 42242729. The next prime is 42242831. The reversal of 42242803 is 30824224.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42242803 is a prime.

It is not a weakly prime, because it can be changed into another prime (42242873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21121401 + 21121402.

It is an arithmetic number, because the mean of its divisors is an integer number (21121402).

Almost surely, 2^42242803 is an apocalyptic number.

42242803 is a deficient number, since it is larger than the sum of its proper divisors (1).

42242803 is an equidigital number, since it uses as much as digits as its factorization.

42242803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 42242803 is about 6499.4463610372. The cubic root of 42242803 is about 348.2712109378.

The spelling of 42242803 in words is "forty-two million, two hundred forty-two thousand, eight hundred three".