226278388 has 24 divisors (see below), whose sum is σ = 453096000. Its totient is φ = 96860928.

The previous prime is 226278383. The next prime is 226278389. The reversal of 226278388 is 883872622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226278383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21663 + ... + 30361.

It is an arithmetic number, because the mean of its divisors is an integer number (18879000).

Almost surely, 2^226278388 is an apocalyptic number.

226278388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

226278388 is an abundant number, since it is smaller than the sum of its proper divisors (226817612).

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

226278388 is a wasteful number, since it uses less digits than its factorization.

226278388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9639 (or 9637 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 226278388 is about 15042.5525759427. The cubic root of 226278388 is about 609.3699379917.

The spelling of 226278388 in words is "two hundred twenty-six million, two hundred seventy-eight thousand, three hundred eighty-eight".