42218057 has 24 divisors (see below), whose sum is σ = 52230240. Its totient is φ = 33929280.

The previous prime is 42217991. The next prime is 42218081. The reversal of 42218057 is 75081224.

It is not a de Polignac number, because 42218057 - 2⁸ = 42217801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42218257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127382 + ... + 127712.

It is an arithmetic number, because the mean of its divisors is an integer number (2176260).

Almost surely, 2^42218057 is an apocalyptic number.

It is an amenable number.

42218057 is a deficient number, since it is larger than the sum of its proper divisors (10012183).

42218057 is a wasteful number, since it uses less digits than its factorization.

42218057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 42218057 is about 6497.5423815470. The cubic root of 42218057 is about 348.2031914394.

The spelling of 42218057 in words is "forty-two million, two hundred eighteen thousand, fifty-seven".