42435450 has 72 divisors (see below), whose sum is σ = 114859836. Its totient is φ = 11232000.

The previous prime is 42435431. The next prime is 42435461. The reversal of 42435450 is 5453424.

42435450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1565001 + 40870449 = 1251^2 + 6393^2 .

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 81190 + ... + 81710.

Almost surely, 2^42435450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42435450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57429918).

42435450 is an abundant number, since it is smaller than the sum of its proper divisors (72424386).

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

42435450 is a wasteful number, since it uses less digits than its factorization.

42435450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 42435450 is about 6514.2497649384. The cubic root of 42435450 is about 348.7998348641.

Adding to 42435450 its reverse (5453424), we get a palindrome (47888874).

The spelling of 42435450 in words is "forty-two million, four hundred thirty-five thousand, four hundred fifty".