42878208 has 72 divisors (see below), whose sum is σ = 117865216. Its totient is φ = 13824000.

The previous prime is 42878201. The next prime is 42878261. The reversal of 42878208 is 80287824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878201) 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, 22908 + ... + 24708.

Almost surely, 2^42878208 is an apocalyptic number.

42878208 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42878208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58932608).

42878208 is an abundant number, since it is smaller than the sum of its proper divisors (74987008).

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

42878208 is a wasteful number, since it uses less digits than its factorization.

42878208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 42878208 is about 6548.1453862907. The cubic root of 42878208 is about 350.0087290340.

The spelling of 42878208 in words is "forty-two million, eight hundred seventy-eight thousand, two hundred eight".