226138472 has 16 divisors (see below), whose sum is σ = 484582560. Its totient is φ = 96916464.

The previous prime is 226138463. The next prime is 226138481. The reversal of 226138472 is 274831622.

It is an interprime number because it is at equal distance from previous prime (226138463) and next prime (226138481).

It is a super-2 number, since 2×226138472² = 102277217036989568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2019038 + ... + 2019149.

It is an arithmetic number, because the mean of its divisors is an integer number (30286410).

Almost surely, 2^226138472 is an apocalyptic number.

It is an amenable number.

226138472 is an abundant number, since it is smaller than the sum of its proper divisors (258444088).

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

226138472 is a wasteful number, since it uses less digits than its factorization.

226138472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038200 (or 4038196 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 226138472 is about 15037.9011833434. The cubic root of 226138472 is about 609.2443137046.

The spelling of 226138472 in words is "two hundred twenty-six million, one hundred thirty-eight thousand, four hundred seventy-two".