42771726 has 40 divisors (see below), whose sum is σ = 97025544. Its totient is φ = 14081040.

The previous prime is 42771721. The next prime is 42771731. The reversal of 42771726 is 62717724.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42771721) and next prime (42771731).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42771721) 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 in 19 ways as a sum of consecutive naturals, for example, 11856 + ... + 15036.

Almost surely, 2^42771726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42771726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48512772).

42771726 is an abundant number, since it is smaller than the sum of its proper divisors (54253818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42771726 is a wasteful number, since it uses less digits than its factorization.

42771726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3278 (or 3269 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 42771726 is about 6540.0096330204. The cubic root of 42771726 is about 349.7187563792.

The spelling of 42771726 in words is "forty-two million, seven hundred seventy-one thousand, seven hundred twenty-six".