42370726 has 4 divisors (see below), whose sum is σ = 63556092. Its totient is φ = 21185362.

The previous prime is 42370721. The next prime is 42370729. The reversal of 42370726 is 62707324.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42370721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10592680 + ... + 10592683.

It is an arithmetic number, because the mean of its divisors is an integer number (15889023).

Almost surely, 2^42370726 is an apocalyptic number.

42370726 is a deficient number, since it is larger than the sum of its proper divisors (21185366).

42370726 is a wasteful number, since it uses less digits than its factorization.

42370726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21185365.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 42370726 is about 6509.2799909053. The cubic root of 42370726 is about 348.6224108157.

The spelling of 42370726 in words is "forty-two million, three hundred seventy thousand, seven hundred twenty-six".