42430344 has 96 divisors (see below), whose sum is σ = 122892000. Its totient is φ = 12165120.

The previous prime is 42430327. The next prime is 42430357. The reversal of 42430344 is 44303424.

It is a happy number.

42430344 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 (24).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 54792 + ... + 55560.

It is an arithmetic number, because the mean of its divisors is an integer number (1280125).

Almost surely, 2^42430344 is an apocalyptic number.

42430344 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 42430344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61446000).

42430344 is an abundant number, since it is smaller than the sum of its proper divisors (80461656).

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

42430344 is a wasteful number, since it uses less digits than its factorization.

42430344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 42430344 is about 6513.8578430911. The cubic root of 42430344 is about 348.7858446476.

Adding to 42430344 its reverse (44303424), we get a palindrome (86733768).

Subtracting 42430344 from its reverse (44303424), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 42430344 in words is "forty-two million, four hundred thirty thousand, three hundred forty-four".