42259726 has 4 divisors (see below), whose sum is σ = 63389592. Its totient is φ = 21129862.

The previous prime is 42259703. The next prime is 42259729. The reversal of 42259726 is 62795224.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42259729) 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, 10564930 + ... + 10564933.

It is an arithmetic number, because the mean of its divisors is an integer number (15847398).

Almost surely, 2^42259726 is an apocalyptic number.

42259726 is a deficient number, since it is larger than the sum of its proper divisors (21129866).

42259726 is a wasteful number, since it uses less digits than its factorization.

42259726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21129865.

The product of its digits is 60480, while the sum is 37.

The square root of 42259726 is about 6500.7481107946. The cubic root of 42259726 is about 348.3177120095.

The spelling of 42259726 in words is "forty-two million, two hundred fifty-nine thousand, seven hundred twenty-six".