225926540 has 24 divisors (see below), whose sum is σ = 542224032. Its totient is φ = 77460480.

The previous prime is 225926537. The next prime is 225926557. The reversal of 225926540 is 45629522.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 225926540.

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 7 ways as a sum of consecutive naturals, for example, 806741 + ... + 807020.

It is an arithmetic number, because the mean of its divisors is an integer number (22592668).

Almost surely, 2^225926540 is an apocalyptic number.

225926540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225926540 is an abundant number, since it is smaller than the sum of its proper divisors (316297492).

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

225926540 is a wasteful number, since it uses less digits than its factorization.

225926540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613777 (or 1613775 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 225926540 is about 15030.8529365436. The cubic root of 225926540 is about 609.0539307630.

The spelling of 225926540 in words is "two hundred twenty-five million, nine hundred twenty-six thousand, five hundred forty".