42447450 has 48 divisors (see below), whose sum is σ = 107734176. Its totient is φ = 11054400.

The previous prime is 42447413. The next prime is 42447451. The reversal of 42447450 is 5474424.

42447450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (42447451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3160 + ... + 9740.

It is an arithmetic number, because the mean of its divisors is an integer number (2244462).

Almost surely, 2^42447450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42447450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53867088).

42447450 is an abundant number, since it is smaller than the sum of its proper divisors (65286726).

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

42447450 is a wasteful number, since it uses less digits than its factorization.

42447450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6639 (or 6634 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 30.

The square root of 42447450 is about 6515.1707575473. The cubic root of 42447450 is about 348.8327099213.

It can be divided in two parts, 424 and 47450, that added together give a palindrome (47874).

The spelling of 42447450 in words is "forty-two million, four hundred forty-seven thousand, four hundred fifty".