42418073 has 8 divisors (see below), whose sum is σ = 43373448. Its totient is φ = 41468544.

The previous prime is 42418069. The next prime is 42418091. The reversal of 42418073 is 37081424.

It can be written as a sum of positive squares in 4 ways, for example, as 595984 + 41822089 = 772^2 + 6467^2 .

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 42418073 - 2² = 42418069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42418093) 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, 15311 + ... + 17867.

It is an arithmetic number, because the mean of its divisors is an integer number (5421681).

Almost surely, 2^42418073 is an apocalyptic number.

It is an amenable number.

42418073 is a deficient number, since it is larger than the sum of its proper divisors (955375).

42418073 is a wasteful number, since it uses less digits than its factorization.

42418073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2923.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 42418073 is about 6512.9158600430. The cubic root of 42418073 is about 348.7522180543.

Adding to 42418073 its reverse (37081424), we get a palindrome (79499497).

The spelling of 42418073 in words is "forty-two million, four hundred eighteen thousand, seventy-three".