226868440 has 32 divisors (see below), whose sum is σ = 513848160. Its totient is φ = 90144000.

The previous prime is 226868437. The next prime is 226868449. The reversal of 226868440 is 44868622.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 226868393 and 226868402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226868449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12741 + ... + 24820.

It is an arithmetic number, because the mean of its divisors is an integer number (16057755).

Almost surely, 2^226868440 is an apocalyptic number.

226868440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226868440 is an abundant number, since it is smaller than the sum of its proper divisors (286979720).

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

226868440 is a wasteful number, since it uses less digits than its factorization.

226868440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37723 (or 37719 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 226868440 is about 15062.1525686072. The cubic root of 226868440 is about 609.8991502183.

The spelling of 226868440 in words is "two hundred twenty-six million, eight hundred sixty-eight thousand, four hundred forty".