42877744 has 80 divisors (see below), whose sum is σ = 104507200. Its totient is φ = 16934400.

The previous prime is 42877729. The next prime is 42877753. The reversal of 42877744 is 44777824.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 42877744.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71044 + ... + 71644.

It is an arithmetic number, because the mean of its divisors is an integer number (1306340).

Almost surely, 2^42877744 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 42877744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52253600).

42877744 is an abundant number, since it is smaller than the sum of its proper divisors (61629456).

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

42877744 is a wasteful number, since it uses less digits than its factorization.

42877744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 623 counting only the distinct ones).

The product of its digits is 351232, while the sum is 43.

The square root of 42877744 is about 6548.1099563156. The cubic root of 42877744 is about 350.0074665074.

The spelling of 42877744 in words is "forty-two million, eight hundred seventy-seven thousand, seven hundred forty-four".