225207438 has 16 divisors (see below), whose sum is σ = 452009856. Its totient is φ = 74803320.

The previous prime is 225207431. The next prime is 225207457. The reversal of 225207438 is 834702522.

225207438 is digitally balanced in base 2, 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 = 225207399 and 225207408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225207431) 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, 64618 + ... + 68013.

It is an arithmetic number, because the mean of its divisors is an integer number (28250616).

Almost surely, 2^225207438 is an apocalyptic number.

225207438 is an abundant number, since it is smaller than the sum of its proper divisors (226802418).

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

225207438 is a wasteful number, since it uses less digits than its factorization.

225207438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132919.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 225207438 is about 15006.9130070111. The cubic root of 225207438 is about 608.4070576732.

The spelling of 225207438 in words is "two hundred twenty-five million, two hundred seven thousand, four hundred thirty-eight".