42225318 has 24 divisors (see below), whose sum is σ = 92161368. Its totient is φ = 13971552.

The previous prime is 42225311. The next prime is 42225319. The reversal of 42225318 is 81352224.

It is a super-2 number, since 2×42225318² = 3565954960402248, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42225291 and 42225300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42225311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6096 + ... + 11027.

It is an arithmetic number, because the mean of its divisors is an integer number (3840057).

Almost surely, 2^42225318 is an apocalyptic number.

42225318 is an abundant number, since it is smaller than the sum of its proper divisors (49936050).

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

42225318 is a wasteful number, since it uses less digits than its factorization.

42225318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17268 (or 17265 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 42225318 is about 6498.1011072466. The cubic root of 42225318 is about 348.2231525542.

The spelling of 42225318 in words is "forty-two million, two hundred twenty-five thousand, three hundred eighteen".