42726537 has 12 divisors (see below), whose sum is σ = 70532800. Its totient is φ = 24415128.

The previous prime is 42726529. The next prime is 42726569. The reversal of 42726537 is 73562724.

It is a happy number.

42726537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42726537 - 2³ = 42726529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42726037) 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 11 ways as a sum of consecutive naturals, for example, 339037 + ... + 339162.

Almost surely, 2^42726537 is an apocalyptic number.

It is an amenable number.

42726537 is a deficient number, since it is larger than the sum of its proper divisors (27806263).

42726537 is a wasteful number, since it uses less digits than its factorization.

42726537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678212 (or 678209 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 42726537 is about 6536.5539085974. The cubic root of 42726537 is about 349.5955518611.

The spelling of 42726537 in words is "forty-two million, seven hundred twenty-six thousand, five hundred thirty-seven".