42863828 has 36 divisors (see below), whose sum is σ = 87639552. Its totient is φ = 18290160.

The previous prime is 42863813. The next prime is 42863837. The reversal of 42863828 is 82836824.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 74783 + ... + 75353.

It is an arithmetic number, because the mean of its divisors is an integer number (2434432).

Almost surely, 2^42863828 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 42863828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43819776).

42863828 is an abundant number, since it is smaller than the sum of its proper divisors (44775724).

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

42863828 is a wasteful number, since it uses less digits than its factorization.

42863828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972 (or 963 counting only the distinct ones).

The product of its digits is 147456, while the sum is 41.

The square root of 42863828 is about 6547.0472733897. The cubic root of 42863828 is about 349.9695973592.

The spelling of 42863828 in words is "forty-two million, eight hundred sixty-three thousand, eight hundred twenty-eight".