226694988 has 72 divisors (see below), whose sum is σ = 618888816. Its totient is φ = 69552000.

The previous prime is 226694987. The next prime is 226694989. The reversal of 226694988 is 889496622.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (226694987) and next prime (226694989).

It is not an unprimeable number, because it can be changed into a prime (226694981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323038 + ... + 323738.

It is an arithmetic number, because the mean of its divisors is an integer number (8595678).

Almost surely, 2^226694988 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 226694988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309444408).

226694988 is an abundant number, since it is smaller than the sum of its proper divisors (392193828).

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

226694988 is a wasteful number, since it uses less digits than its factorization.

226694988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415 (or 1410 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 226694988 is about 15056.3935920924. The cubic root of 226694988 is about 609.7436780293.

The spelling of 226694988 in words is "two hundred twenty-six million, six hundred ninety-four thousand, nine hundred eighty-eight".