226405400 has 144 divisors (see below), whose sum is σ = 596420160. Its totient is φ = 79372800.

The previous prime is 226405379. The next prime is 226405423. The reversal of 226405400 is 4504622.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4271774 + ... + 4271826.

Almost surely, 2^226405400 is an apocalyptic number.

226405400 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 226405400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298210080).

226405400 is an abundant number, since it is smaller than the sum of its proper divisors (370014760).

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

226405400 is a wasteful number, since it uses less digits than its factorization.

226405400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 226405400 is about 15046.7737405731. The cubic root of 226405400 is about 609.4839315235.

The spelling of 226405400 in words is "two hundred twenty-six million, four hundred five thousand, four hundred".