42604406 has 16 divisors (see below), whose sum is σ = 69768384. Its totient is φ = 19393344.

The previous prime is 42604399. The next prime is 42604409. The reversal of 42604406 is 60440624.

42604406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42604406² = 3630270821225672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42604409) 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, 9326 + ... + 13121.

It is an arithmetic number, because the mean of its divisors is an integer number (4360524).

Almost surely, 2^42604406 is an apocalyptic number.

42604406 is a deficient number, since it is larger than the sum of its proper divisors (27163978).

42604406 is a wasteful number, since it uses less digits than its factorization.

42604406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22535.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 42604406 is about 6527.2050680211. The cubic root of 42604406 is about 349.2621353340.

The spelling of 42604406 in words is "forty-two million, six hundred four thousand, four hundred six".