42413857 has 2 divisors, whose sum is σ = 42413858. Its totient is φ = 42413856.

The previous prime is 42413843. The next prime is 42413897. The reversal of 42413857 is 75831424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42393121 + 20736 = 6511^2 + 144^2 .

It is a cyclic number.

It is not a de Polignac number, because 42413857 - 2¹⁹ = 41889569 is a prime.

It is not a weakly prime, because it can be changed into another prime (42413807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21206928 + 21206929.

It is an arithmetic number, because the mean of its divisors is an integer number (21206929).

Almost surely, 2^42413857 is an apocalyptic number.

It is an amenable number.

42413857 is a deficient number, since it is larger than the sum of its proper divisors (1).

42413857 is an equidigital number, since it uses as much as digits as its factorization.

42413857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 42413857 is about 6512.5921874473. The cubic root of 42413857 is about 348.7406633249.

The spelling of 42413857 in words is "forty-two million, four hundred thirteen thousand, eight hundred fifty-seven".