42413405 has 4 divisors (see below), whose sum is σ = 50896092. Its totient is φ = 33930720.

The previous prime is 42413401. The next prime is 42413429. The reversal of 42413405 is 50431424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23290276 + 19123129 = 4826^2 + 4373^2 .

It is not a de Polignac number, because 42413405 - 2² = 42413401 is a prime.

It is a super-3 number, since 3×42413405³ (a number of 24 digits) contains 333 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 (42413401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4241336 + ... + 4241345.

It is an arithmetic number, because the mean of its divisors is an integer number (12724023).

Almost surely, 2^42413405 is an apocalyptic number.

It is an amenable number.

42413405 is a deficient number, since it is larger than the sum of its proper divisors (8482687).

42413405 is an equidigital number, since it uses as much as digits as its factorization.

42413405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8482686.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 42413405 is about 6512.5574853509. The cubic root of 42413405 is about 348.7394244897.

Adding to 42413405 its reverse (50431424), we get a palindrome (92844829).

The spelling of 42413405 in words is "forty-two million, four hundred thirteen thousand, four hundred five".