226390720 has 56 divisors (see below), whose sum is σ = 540648144. Its totient is φ = 90295296.

The previous prime is 226390693. The next prime is 226390727. The reversal of 226390720 is 27093622.

It is not an unprimeable number, because it can be changed into a prime (226390727) 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, 140962 + ... + 142558.

Almost surely, 2^226390720 is an apocalyptic number.

226390720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226390720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270324072).

226390720 is an abundant number, since it is smaller than the sum of its proper divisors (314257424).

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

226390720 is a wasteful number, since it uses less digits than its factorization.

226390720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057 (or 2047 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 226390720 is about 15046.2859204523. The cubic root of 226390720 is about 609.4707583725.

The spelling of 226390720 in words is "two hundred twenty-six million, three hundred ninety thousand, seven hundred twenty".