42418256 has 40 divisors (see below), whose sum is σ = 86988480. Its totient is φ = 19996416.

The previous prime is 42418219. The next prime is 42418267. The reversal of 42418256 is 65281424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26075 + ... + 27653.

It is an arithmetic number, because the mean of its divisors is an integer number (2174712).

Almost surely, 2^42418256 is an apocalyptic number.

42418256 is a gapful number since it is divisible by the number (46) 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 42418256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43494240).

42418256 is an abundant number, since it is smaller than the sum of its proper divisors (44570224).

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

42418256 is a wasteful number, since it uses less digits than its factorization.

42418256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683 (or 1677 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 42418256 is about 6512.9299090348. The cubic root of 42418256 is about 348.7527195824.

The spelling of 42418256 in words is "forty-two million, four hundred eighteen thousand, two hundred fifty-six".