42771822 has 16 divisors (see below), whose sum is σ = 86218752. Its totient is φ = 14144760.

The previous prime is 42771821. The next prime is 42771823. The reversal of 42771822 is 22817724.

42771822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42771821) and next prime (42771823).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42771821) 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 7 ways as a sum of consecutive naturals, for example, 27304 + ... + 28827.

It is an arithmetic number, because the mean of its divisors is an integer number (5388672).

Almost surely, 2^42771822 is an apocalyptic number.

42771822 is an abundant number, since it is smaller than the sum of its proper divisors (43446930).

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

42771822 is a wasteful number, since it uses less digits than its factorization.

42771822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56263.

The product of its digits is 12544, while the sum is 33.

The square root of 42771822 is about 6540.0169724550. The cubic root of 42771822 is about 349.7190180239.

The spelling of 42771822 in words is "forty-two million, seven hundred seventy-one thousand, eight hundred twenty-two".