42044442 has 32 divisors (see below), whose sum is σ = 92413440. Its totient is φ = 12646320.

The previous prime is 42044441. The next prime is 42044447. The reversal of 42044442 is 24444024.

It is not an unprimeable number, because it can be changed into a prime (42044441) 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, 6883 + ... + 11465.

It is an arithmetic number, because the mean of its divisors is an integer number (2887920).

Almost surely, 2^42044442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42044442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46206720).

42044442 is an abundant number, since it is smaller than the sum of its proper divisors (50368998).

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

42044442 is a wasteful number, since it uses less digits than its factorization.

42044442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738.

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 42044442 is about 6484.1685665936. The cubic root of 42044442 is about 347.7252256952.

Adding to 42044442 its reverse (24444024), we get a palindrome (66488466).

It can be divided in two parts, 42044 and 442, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 42044442 in words is "forty-two million, forty-four thousand, four hundred forty-two".