42230240 has 96 divisors (see below), whose sum is σ = 109226880. Its totient is φ = 15335424.

The previous prime is 42230219. The next prime is 42230249. The reversal of 42230240 is 4203224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42230249) 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, 164192 + ... + 164448.

It is an arithmetic number, because the mean of its divisors is an integer number (1137780).

Almost surely, 2^42230240 is an apocalyptic number.

42230240 is a gapful number since it is divisible by the number (40) 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 42230240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54613440).

42230240 is an abundant number, since it is smaller than the sum of its proper divisors (66996640).

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

42230240 is a wasteful number, since it uses less digits than its factorization.

42230240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 42230240 is about 6498.4798222354. The cubic root of 42230240 is about 348.2366822550.

Adding to 42230240 its reverse (4203224), we get a palindrome (46433464).

The spelling of 42230240 in words is "forty-two million, two hundred thirty thousand, two hundred forty".