225396890 has 8 divisors (see below), whose sum is σ = 405714420. Its totient is φ = 90158752.

The previous prime is 225396883. The next prime is 225396901. The reversal of 225396890 is 98693522.

It can be written as a sum of positive squares in 2 ways, for example, as 224790049 + 606841 = 14993^2 + 779^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11269835 + ... + 11269854.

Almost surely, 2^225396890 is an apocalyptic number.

225396890 is a deficient number, since it is larger than the sum of its proper divisors (180317530).

225396890 is a wasteful number, since it uses less digits than its factorization.

225396890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22539696.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 225396890 is about 15013.2238376706. The cubic root of 225396890 is about 608.5776139519.

The spelling of 225396890 in words is "two hundred twenty-five million, three hundred ninety-six thousand, eight hundred ninety".