42054656 has 44 divisors (see below), whose sum is σ = 96094368. Its totient is φ = 18020352.

The previous prime is 42054647. The next prime is 42054659. The reversal of 42054656 is 65645024.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42054659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4235 + ... + 10101.

Almost surely, 2^42054656 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 42054656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48047184).

42054656 is an abundant number, since it is smaller than the sum of its proper divisors (54039712).

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

42054656 is an equidigital number, since it uses as much as digits as its factorization.

42054656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5894 (or 5876 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 42054656 is about 6484.9561293813. The cubic root of 42054656 is about 347.7533814412.

The spelling of 42054656 in words is "forty-two million, fifty-four thousand, six hundred fifty-six".