226993284 has 144 divisors (see below), whose sum is σ = 691891200. Its totient is φ = 62657280.

The previous prime is 226993267. The next prime is 226993309. The reversal of 226993284 is 482399622.

It is a super-2 number, since 2×226993284² = 103051901962209312, 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 47 ways as a sum of consecutive naturals, for example, 382492 + ... + 383084.

It is an arithmetic number, because the mean of its divisors is an integer number (4804800).

Almost surely, 2^226993284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226993284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345945600).

226993284 is an abundant number, since it is smaller than the sum of its proper divisors (464897916).

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

226993284 is a wasteful number, since it uses less digits than its factorization.

226993284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 636 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 226993284 is about 15066.2962933828. The cubic root of 226993284 is about 610.0110040118.

The spelling of 226993284 in words is "two hundred twenty-six million, nine hundred ninety-three thousand, two hundred eighty-four".