42726413 has 4 divisors (see below), whose sum is σ = 43426908. Its totient is φ = 42025920.

The previous prime is 42726407. The next prime is 42726493. The reversal of 42726413 is 31462724.

42726413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 17455684 + 25270729 = 4178^2 + 5027^2 .

It is a cyclic number.

It is not a de Polignac number, because 42726413 - 2¹⁸ = 42464269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42726403) 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 3 ways as a sum of consecutive naturals, for example, 350156 + ... + 350277.

It is an arithmetic number, because the mean of its divisors is an integer number (10856727).

Almost surely, 2^42726413 is an apocalyptic number.

It is an amenable number.

42726413 is a deficient number, since it is larger than the sum of its proper divisors (700495).

42726413 is an equidigital number, since it uses as much as digits as its factorization.

42726413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700494.

The product of its digits is 8064, while the sum is 29.

The square root of 42726413 is about 6536.5444234702. The cubic root of 42726413 is about 349.5952136646.

The spelling of 42726413 in words is "forty-two million, seven hundred twenty-six thousand, four hundred thirteen".