42236320 has 96 divisors (see below), whose sum is σ = 116823168. Its totient is φ = 14128128.

The previous prime is 42236317. The next prime is 42236371. The reversal of 42236320 is 2363224.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42236291 and 42236300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47722 + ... + 48598.

It is an arithmetic number, because the mean of its divisors is an integer number (1216908).

Almost surely, 2^42236320 is an apocalyptic number.

42236320 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 42236320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58411584).

42236320 is an abundant number, since it is smaller than the sum of its proper divisors (74586848).

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

42236320 is a wasteful number, since it uses less digits than its factorization.

42236320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 934 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 42236320 is about 6498.9476071130. The cubic root of 42236320 is about 348.2533936402.

Adding to 42236320 its reverse (2363224), we get a palindrome (44599544).

The spelling of 42236320 in words is "forty-two million, two hundred thirty-six thousand, three hundred twenty".