225786738 has 8 divisors (see below), whose sum is σ = 451573488. Its totient is φ = 75262244.

The previous prime is 225786727. The next prime is 225786749. The reversal of 225786738 is 837687522.

It is an interprime number because it is at equal distance from previous prime (225786727) and next prime (225786749).

It is a sphenic number, since it is the product of 3 distinct primes.

225786738 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18815556 + ... + 18815567.

It is an arithmetic number, because the mean of its divisors is an integer number (56446686).

Almost surely, 2^225786738 is an apocalyptic number.

225786738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

225786738 is a wasteful number, since it uses less digits than its factorization.

225786738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37631128.

The product of its digits is 1128960, while the sum is 48.

The square root of 225786738 is about 15026.2017156699. The cubic root of 225786738 is about 608.9282785245.

The spelling of 225786738 in words is "two hundred twenty-five million, seven hundred eighty-six thousand, seven hundred thirty-eight".