42522349 has 2 divisors, whose sum is σ = 42522350. Its totient is φ = 42522348.

The previous prime is 42522343. The next prime is 42522367. The reversal of 42522349 is 94322524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42484324 + 38025 = 6518^2 + 195^2 .

It is a cyclic number.

It is not a de Polignac number, because 42522349 - 2⁹ = 42521837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42522349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42522343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21261174 + 21261175.

It is an arithmetic number, because the mean of its divisors is an integer number (21261175).

Almost surely, 2^42522349 is an apocalyptic number.

It is an amenable number.

42522349 is a deficient number, since it is larger than the sum of its proper divisors (1).

42522349 is an equidigital number, since it uses as much as digits as its factorization.

42522349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 31.

The square root of 42522349 is about 6520.9162699731. The cubic root of 42522349 is about 349.0377624347.

The spelling of 42522349 in words is "forty-two million, five hundred twenty-two thousand, three hundred forty-nine".