42272726 has 8 divisors (see below), whose sum is σ = 63444384. Its totient is φ = 21124600.

The previous prime is 42272719. The next prime is 42272729. The reversal of 42272726 is 62727224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42272692 and 42272701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42272729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350 + ... + 9201.

It is an arithmetic number, because the mean of its divisors is an integer number (7930548).

Almost surely, 2^42272726 is an apocalyptic number.

42272726 is a deficient number, since it is larger than the sum of its proper divisors (21171658).

42272726 is a wasteful number, since it uses less digits than its factorization.

42272726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11766.

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

The square root of 42272726 is about 6501.7479188292. The cubic root of 42272726 is about 348.3534250193.

The spelling of 42272726 in words is "forty-two million, two hundred seventy-two thousand, seven hundred twenty-six".