42771248 has 40 divisors (see below), whose sum is σ = 90733776. Its totient is φ = 19411200.

The previous prime is 42771247. The next prime is 42771319. The reversal of 42771248 is 84217724.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42771247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11003 + ... + 14373.

Almost surely, 2^42771248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42771248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45366888).

42771248 is an abundant number, since it is smaller than the sum of its proper divisors (47962528).

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

42771248 is a wasteful number, since it uses less digits than its factorization.

42771248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3453 (or 3447 counting only the distinct ones).

The product of its digits is 25088, while the sum is 35.

The square root of 42771248 is about 6539.9730886296. The cubic root of 42771248 is about 349.7174536013.

The spelling of 42771248 in words is "forty-two million, seven hundred seventy-one thousand, two hundred forty-eight".