42445304 has 64 divisors (see below), whose sum is σ = 92240640. Its totient is φ = 18120960.

The previous prime is 42445303. The next prime is 42445313. The reversal of 42445304 is 40354424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42445301) 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, 135452 + ... + 135764.

It is an arithmetic number, because the mean of its divisors is an integer number (1441260).

Almost surely, 2^42445304 is an apocalyptic number.

42445304 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42445304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46120320).

42445304 is an abundant number, since it is smaller than the sum of its proper divisors (49795336).

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

42445304 is a wasteful number, since it uses less digits than its factorization.

42445304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 42445304 is about 6515.0060629289. The cubic root of 42445304 is about 348.8268312202.

Adding to 42445304 its reverse (40354424), we get a palindrome (82799728).

The spelling of 42445304 in words is "forty-two million, four hundred forty-five thousand, three hundred four".