42225320 has 32 divisors (see below), whose sum is σ = 95476320. Its totient is φ = 16806720.

The previous prime is 42225319. The next prime is 42225329. The reversal of 42225320 is 2352224.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 42225292 and 42225301.

It is not an unprimeable number, because it can be changed into a prime (42225329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5939 + ... + 10941.

It is an arithmetic number, because the mean of its divisors is an integer number (2983635).

Almost surely, 2^42225320 is an apocalyptic number.

42225320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42225320 is an abundant number, since it is smaller than the sum of its proper divisors (53251000).

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

42225320 is a wasteful number, since it uses less digits than its factorization.

42225320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5225 (or 5221 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 42225320 is about 6498.1012611377. The cubic root of 42225320 is about 348.2231580520.

Adding to 42225320 its reverse (2352224), we get a palindrome (44577544).

The spelling of 42225320 in words is "forty-two million, two hundred twenty-five thousand, three hundred twenty".