42674081 has 2 divisors, whose sum is σ = 42674082. Its totient is φ = 42674080.

The previous prime is 42674069. The next prime is 42674113. The reversal of 42674081 is 18047624.

It is an a-pointer prime, because the next prime (42674113) can be obtained adding 42674081 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., 28302400 + 14371681 = 5320^2 + 3791^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42674081 is a prime.

It is a super-2 number, since 2×42674081² = 3642154378389122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42674041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21337040 + 21337041.

It is an arithmetic number, because the mean of its divisors is an integer number (21337041).

Almost surely, 2^42674081 is an apocalyptic number.

It is an amenable number.

42674081 is a deficient number, since it is larger than the sum of its proper divisors (1).

42674081 is an equidigital number, since it uses as much as digits as its factorization.

42674081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 42674081 is about 6532.5401644383. The cubic root of 42674081 is about 349.4524253996.

The spelling of 42674081 in words is "forty-two million, six hundred seventy-four thousand, eighty-one".