42958481 has 2 divisors, whose sum is σ = 42958482. Its totient is φ = 42958480.

The previous prime is 42958471. The next prime is 42958499. The reversal of 42958481 is 18485924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21715600 + 21242881 = 4660^2 + 4609^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42958481 is a prime.

It is a super-2 number, since 2×42958481² = 3690862179654722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42958471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21479240 + 21479241.

It is an arithmetic number, because the mean of its divisors is an integer number (21479241).

Almost surely, 2^42958481 is an apocalyptic number.

It is an amenable number.

42958481 is a deficient number, since it is larger than the sum of its proper divisors (1).

42958481 is an equidigital number, since it uses as much as digits as its factorization.

42958481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 41.

The square root of 42958481 is about 6554.2719656725. The cubic root of 42958481 is about 350.2270119107.

The spelling of 42958481 in words is "forty-two million, nine hundred fifty-eight thousand, four hundred eighty-one".