42361857 has 6 divisors (see below), whose sum is σ = 61189362. Its totient is φ = 28241232.

The previous prime is 42361853. The next prime is 42361859. The reversal of 42361857 is 75816324.

It can be written as a sum of positive squares in only one way, i.e., 31708161 + 10653696 = 5631^2 + 3264^2 .

It is not a de Polignac number, because 42361857 - 2² = 42361853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42361853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2353428 + ... + 2353445.

It is an arithmetic number, because the mean of its divisors is an integer number (10198227).

Almost surely, 2^42361857 is an apocalyptic number.

It is an amenable number.

42361857 is a deficient number, since it is larger than the sum of its proper divisors (18827505).

42361857 is a wasteful number, since it uses less digits than its factorization.

42361857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706879 (or 4706876 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 42361857 is about 6508.5986971083. The cubic root of 42361857 is about 348.5980846813.

The spelling of 42361857 in words is "forty-two million, three hundred sixty-one thousand, eight hundred fifty-seven".