226237428 has 96 divisors (see below), whose sum is σ = 625968000. Its totient is φ = 70414848.

The previous prime is 226237423. The next prime is 226237481. The reversal of 226237428 is 824732622.

It is a happy number.

226237428 is a `hidden beast` number, since 2 + 2 + 623 + 7 + 4 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 226237392 and 226237401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226237421) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 273151 + ... + 273977.

It is an arithmetic number, because the mean of its divisors is an integer number (6520500).

Almost surely, 2^226237428 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 226237428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312984000).

226237428 is an abundant number, since it is smaller than the sum of its proper divisors (399730572).

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

226237428 is a wasteful number, since it uses less digits than its factorization.

226237428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006 (or 998 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 226237428 is about 15041.1910432652. The cubic root of 226237428 is about 609.3331672111. Note that the first 3 decimals are identical.

The spelling of 226237428 in words is "two hundred twenty-six million, two hundred thirty-seven thousand, four hundred twenty-eight".