42054544 has 80 divisors (see below), whose sum is σ = 97216000. Its totient is φ = 17611776.

The previous prime is 42054541. The next prime is 42054577. The reversal of 42054544 is 44545024.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42054541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433504 + ... + 433600.

It is an arithmetic number, because the mean of its divisors is an integer number (1215200).

Almost surely, 2^42054544 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 42054544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48608000).

42054544 is an abundant number, since it is smaller than the sum of its proper divisors (55161456).

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

42054544 is an equidigital number, since it uses as much as digits as its factorization.

42054544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 42054544 is about 6484.9474940049. The cubic root of 42054544 is about 347.7530727286.

Adding to 42054544 its reverse (44545024), we get a palindrome (86599568).

The spelling of 42054544 in words is "forty-two million, fifty-four thousand, five hundred forty-four".