42818256 has 120 divisors (see below), whose sum is σ = 131007240. Its totient is φ = 12976128.

The previous prime is 42818231. The next prime is 42818263. The reversal of 42818256 is 65281824.

42818256 is a `hidden beast` number, since 428 + 182 + 56 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5363856 + 37454400 = 2316^2 + 6120^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 42818256.

It is a congruent number.

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, 166480 + ... + 166736.

It is an arithmetic number, because the mean of its divisors is an integer number (1091727).

Almost surely, 2^42818256 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 42818256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65503620).

42818256 is an abundant number, since it is smaller than the sum of its proper divisors (88188984).

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

42818256 is a wasteful number, since it uses less digits than its factorization.

42818256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 364 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 42818256 is about 6543.5660002784. The cubic root of 42818256 is about 349.8455263904.

The spelling of 42818256 in words is "forty-two million, eight hundred eighteen thousand, two hundred fifty-six".