42413645 has 8 divisors (see below), whose sum is σ = 51019800. Its totient is φ = 33848640.

The previous prime is 42413629. The next prime is 42413647. The reversal of 42413645 is 54631424.

42413645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 137641 + 42276004 = 371^2 + 6502^2 .

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

It is not a de Polignac number, because 42413645 - 2⁴ = 42413629 is a prime.

It is a super-3 number, since 3×42413645³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42413647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7970 + ... + 12179.

It is an arithmetic number, because the mean of its divisors is an integer number (6377475).

Almost surely, 2^42413645 is an apocalyptic number.

It is an amenable number.

42413645 is a deficient number, since it is larger than the sum of its proper divisors (8606155).

42413645 is a wasteful number, since it uses less digits than its factorization.

42413645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20575.

The product of its digits is 11520, while the sum is 29.

The square root of 42413645 is about 6512.5759112658. The cubic root of 42413645 is about 348.7400822794.

The spelling of 42413645 in words is "forty-two million, four hundred thirteen thousand, six hundred forty-five".