226538720 has 48 divisors (see below), whose sum is σ = 553664160. Its totient is φ = 87489024.

The previous prime is 226538699. The next prime is 226538723. The reversal of 226538720 is 27835622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226538723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19772 + ... + 29051.

It is an arithmetic number, because the mean of its divisors is an integer number (11534670).

Almost surely, 2^226538720 is an apocalyptic number.

226538720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226538720 is an abundant number, since it is smaller than the sum of its proper divisors (327125440).

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

226538720 is a wasteful number, since it uses less digits than its factorization.

226538720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48867 (or 48859 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 226538720 is about 15051.2032741572. The cubic root of 226538720 is about 609.6035406458.

The spelling of 226538720 in words is "two hundred twenty-six million, five hundred thirty-eight thousand, seven hundred twenty".