43442004 has 48 divisors (see below), whose sum is σ = 109118016. Its totient is φ = 13401600.

The previous prime is 43441973. The next prime is 43442011. The reversal of 43442004 is 40024434.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10699 + ... + 14189.

It is an arithmetic number, because the mean of its divisors is an integer number (2273292).

Almost surely, 2^43442004 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 43442004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54559008).

43442004 is an abundant number, since it is smaller than the sum of its proper divisors (65676012).

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

43442004 is a wasteful number, since it uses less digits than its factorization.

43442004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3576 (or 3574 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 43442004 is about 6591.0548472911. The cubic root of 43442004 is about 351.5361162976.

Adding to 43442004 its reverse (40024434), we get a palindrome (83466438).

The spelling of 43442004 in words is "forty-three million, four hundred forty-two thousand, four".