225942442 has 16 divisors (see below), whose sum is σ = 377592192. Its totient is φ = 100515520.

The previous prime is 225942439. The next prime is 225942443. The reversal of 225942442 is 244249522.

225942442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 225942398 and 225942407.

It is not an unprimeable number, because it can be changed into a prime (225942443) 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, 108223 + ... + 110290.

It is an arithmetic number, because the mean of its divisors is an integer number (23599512).

Almost surely, 2^225942442 is an apocalyptic number.

225942442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

225942442 is a deficient number, since it is larger than the sum of its proper divisors (151649750).

225942442 is a wasteful number, since it uses less digits than its factorization.

225942442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218573.

The product of its digits is 46080, while the sum is 34.

The square root of 225942442 is about 15031.3819058661. The cubic root of 225942442 is about 609.0682199923.

The spelling of 225942442 in words is "two hundred twenty-five million, nine hundred forty-two thousand, four hundred forty-two".