42220963 has 2 divisors, whose sum is σ = 42220964. Its totient is φ = 42220962.

The previous prime is 42220957. The next prime is 42221027. The reversal of 42220963 is 36902224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42220963 is a prime.

It is not a weakly prime, because it can be changed into another prime (42220903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21110481 + 21110482.

It is an arithmetic number, because the mean of its divisors is an integer number (21110482).

Almost surely, 2^42220963 is an apocalyptic number.

42220963 is a deficient number, since it is larger than the sum of its proper divisors (1).

42220963 is an equidigital number, since it uses as much as digits as its factorization.

42220963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 42220963 is about 6497.7660007113. The cubic root of 42220963 is about 348.2111805585.

The spelling of 42220963 in words is "forty-two million, two hundred twenty thousand, nine hundred sixty-three".