42445104 has 80 divisors (see below), whose sum is σ = 118992384. Its totient is φ = 12960000.

The previous prime is 42445093. The next prime is 42445153. The reversal of 42445104 is 40154424.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156489 + ... + 156759.

Almost surely, 2^42445104 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 42445104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59496192).

42445104 is an abundant number, since it is smaller than the sum of its proper divisors (76547280).

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

42445104 is a wasteful number, since it uses less digits than its factorization.

42445104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 42445104 is about 6514.9907137309. The cubic root of 42445104 is about 348.8262833349.

Adding to 42445104 its reverse (40154424), we get a palindrome (82599528).

The spelling of 42445104 in words is "forty-two million, four hundred forty-five thousand, one hundred four".