42220463 has 2 divisors, whose sum is σ = 42220464. Its totient is φ = 42220462.

The previous prime is 42220393. The next prime is 42220471. The reversal of 42220463 is 36402224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42220463 - 2¹⁴ = 42204079 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42220483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21110231 + 21110232.

It is an arithmetic number, because the mean of its divisors is an integer number (21110232).

Almost surely, 2^42220463 is an apocalyptic number.

42220463 is a deficient number, since it is larger than the sum of its proper divisors (1).

42220463 is an equidigital number, since it uses as much as digits as its factorization.

42220463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 42220463 is about 6497.7275258355. The cubic root of 42220463 is about 348.2098059943.

Adding to 42220463 its reverse (36402224), we get a palindrome (78622687).

The spelling of 42220463 in words is "forty-two million, two hundred twenty thousand, four hundred sixty-three".