42380613 has 18 divisors (see below), whose sum is σ = 67289222. Its totient is φ = 25684560.

The previous prime is 42380599. The next prime is 42380623. The reversal of 42380613 is 31608324.

It is a happy number.

42380613 is a `hidden beast` number, since 42 + 3 + 8 + 0 + 613 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28227969 + 14152644 = 5313^2 + 3762^2 .

It is not a de Polignac number, because 42380613 - 2⁵ = 42380581 is a prime.

It is a super-2 number, since 2×42380613² = 3592232716511538, which contains 22 as substring.

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 (42380623) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18370 + ... + 20547.

Almost surely, 2^42380613 is an apocalyptic number.

It is an amenable number.

42380613 is a deficient number, since it is larger than the sum of its proper divisors (24908609).

42380613 is a wasteful number, since it uses less digits than its factorization.

42380613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38945 (or 38931 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 42380613 is about 6510.0394008024. The cubic root of 42380613 is about 348.6495251470.

Adding to 42380613 its reverse (31608324), we get a palindrome (73988937).

The spelling of 42380613 in words is "forty-two million, three hundred eighty thousand, six hundred thirteen".