225787738 has 32 divisors (see below), whose sum is σ = 385705152. Its totient is φ = 98217600.

The previous prime is 225787729. The next prime is 225787741. The reversal of 225787738 is 837787522.

It is a junction number, because it is equal to n+sod(n) for n = 225787691 and 225787700.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45445 + ... + 50167.

It is an arithmetic number, because the mean of its divisors is an integer number (12053286).

Almost surely, 2^225787738 is an apocalyptic number.

225787738 is a deficient number, since it is larger than the sum of its proper divisors (159917414).

225787738 is a wasteful number, since it uses less digits than its factorization.

225787738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4830.

The product of its digits is 1317120, while the sum is 49.

The square root of 225787738 is about 15026.2349908419. The cubic root of 225787738 is about 608.9291774958.

The spelling of 225787738 in words is "two hundred twenty-five million, seven hundred eighty-seven thousand, seven hundred thirty-eight".