42442097 has 2 divisors, whose sum is σ = 42442098. Its totient is φ = 42442096.

The previous prime is 42442073. The next prime is 42442129. The reversal of 42442097 is 79024424.

It is an a-pointer prime, because the next prime (42442129) can be obtained adding 42442097 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33686416 + 8755681 = 5804^2 + 2959^2 .

It is a cyclic number.

It is not a de Polignac number, because 42442097 - 2⁶ = 42442033 is a prime.

It is not a weakly prime, because it can be changed into another prime (42442027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21221048 + 21221049.

It is an arithmetic number, because the mean of its divisors is an integer number (21221049).

Almost surely, 2^42442097 is an apocalyptic number.

It is an amenable number.

42442097 is a deficient number, since it is larger than the sum of its proper divisors (1).

42442097 is an equidigital number, since it uses as much as digits as its factorization.

42442097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 42442097 is about 6514.7599341802. The cubic root of 42442097 is about 348.8180456718.

The spelling of 42442097 in words is "forty-two million, four hundred forty-two thousand, ninety-seven".