225809190 has 48 divisors (see below), whose sum is σ = 596743056. Its totient is φ = 59227200.

The previous prime is 225809179. The next prime is 225809231. The reversal of 225809190 is 91908522.

It is a super-2 number, since 2×225809190² = 101979580576912200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15076 + ... + 26055.

It is an arithmetic number, because the mean of its divisors is an integer number (12432147).

Almost surely, 2^225809190 is an apocalyptic number.

225809190 is an abundant number, since it is smaller than the sum of its proper divisors (370933866).

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

225809190 is a wasteful number, since it uses less digits than its factorization.

225809190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41205 (or 41202 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 225809190 is about 15026.9487920868. The cubic root of 225809190 is about 608.9484615885.

The spelling of 225809190 in words is "two hundred twenty-five million, eight hundred nine thousand, one hundred ninety".