42726407 has 2 divisors, whose sum is σ = 42726408. Its totient is φ = 42726406.

The previous prime is 42726403. The next prime is 42726493. The reversal of 42726407 is 70462724.

42726407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42726407 - 2² = 42726403 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another 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 as a sum of consecutive naturals, namely, 21363203 + 21363204.

It is an arithmetic number, because the mean of its divisors is an integer number (21363204).

Almost surely, 2^42726407 is an apocalyptic number.

42726407 is a deficient number, since it is larger than the sum of its proper divisors (1).

42726407 is an equidigital number, since it uses as much as digits as its factorization.

42726407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 42726407 is about 6536.5439645121. The cubic root of 42726407 is about 349.5951973003.

The spelling of 42726407 in words is "forty-two million, seven hundred twenty-six thousand, four hundred seven".