42371685 has 12 divisors (see below), whose sum is σ = 73444332. Its totient is φ = 22598208.

The previous prime is 42371683. The next prime is 42371689. The reversal of 42371685 is 58617324.

It can be written as a sum of positive squares in 2 ways, for example, as 6155361 + 36216324 = 2481^2 + 6018^2 .

It is not a de Polignac number, because 42371685 - 2¹ = 42371683 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42371683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 470752 + ... + 470841.

It is an arithmetic number, because the mean of its divisors is an integer number (6120361).

Almost surely, 2^42371685 is an apocalyptic number.

42371685 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42371685 is a deficient number, since it is larger than the sum of its proper divisors (31072647).

42371685 is a wasteful number, since it uses less digits than its factorization.

42371685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941604 (or 941601 counting only the distinct ones).

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

The square root of 42371685 is about 6509.3536545497. The cubic root of 42371685 is about 348.6250409836.

It can be divided in two parts, 423716 and 85, that added together give a square (423801 = 651²).

The spelling of 42371685 in words is "forty-two million, three hundred seventy-one thousand, six hundred eighty-five".