42020726 has 16 divisors (see below), whose sum is σ = 70225920. Its totient is φ = 18693480.

The previous prime is 42020687. The next prime is 42020729. The reversal of 42020726 is 62702024.

42020726 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42020729) 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, 19286 + ... + 21353.

It is an arithmetic number, because the mean of its divisors is an integer number (4389120).

Almost surely, 2^42020726 is an apocalyptic number.

42020726 is a deficient number, since it is larger than the sum of its proper divisors (28205194).

42020726 is a wasteful number, since it uses less digits than its factorization.

42020726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40699.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 42020726 is about 6482.3395467994. The cubic root of 42020726 is about 347.6598329655.

The spelling of 42020726 in words is "forty-two million, twenty thousand, seven hundred twenty-six".