42856704 has 216 divisors, whose sum is σ = 143488800. Its totient is φ = 12165120.

The previous prime is 42856691. The next prime is 42856727. The reversal of 42856704 is 40765824.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 481492 + ... + 481580.

It is an arithmetic number, because the mean of its divisors is an integer number (664300).

Almost surely, 2^42856704 is an apocalyptic number.

42856704 is a gapful number since it is divisible by the number (44) 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 42856704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71744400).

42856704 is an abundant number, since it is smaller than the sum of its proper divisors (100632096).

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

42856704 is a wasteful number, since it uses less digits than its factorization.

42856704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 42856704 is about 6546.5031887260. The cubic root of 42856704 is about 349.9502078827.

The spelling of 42856704 in words is "forty-two million, eight hundred fifty-six thousand, seven hundred four".