42418613 has 8 divisors (see below), whose sum is σ = 43651968. Its totient is φ = 41189904.

The previous prime is 42418609. The next prime is 42418627. The reversal of 42418613 is 31681424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42418613 - 2² = 42418609 is a prime.

It is a super-4 number, since 4×42418613⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42412613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26720 + ... + 28262.

It is an arithmetic number, because the mean of its divisors is an integer number (5456496).

Almost surely, 2^42418613 is an apocalyptic number.

It is an amenable number.

42418613 is a deficient number, since it is larger than the sum of its proper divisors (1233355).

42418613 is a wasteful number, since it uses less digits than its factorization.

42418613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323.

The product of its digits is 4608, while the sum is 29.

The square root of 42418613 is about 6512.9573159971. The cubic root of 42418613 is about 348.7536979691.

The spelling of 42418613 in words is "forty-two million, four hundred eighteen thousand, six hundred thirteen".