228406000 has 40 divisors (see below), whose sum is σ = 552290544. Its totient is φ = 91361600.

The previous prime is 228405979. The next prime is 228406007. The reversal of 228406000 is 604822.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228406007) 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, 55102 + ... + 59101.

Almost surely, 2^228406000 is an apocalyptic number.

228406000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228406000 is an abundant number, since it is smaller than the sum of its proper divisors (323884544).

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

228406000 is a wasteful number, since it uses less digits than its factorization.

228406000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114226 (or 114210 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 228406000 is about 15113.1068943484. The cubic root of 228406000 is about 611.2738764488.

The spelling of 228406000 in words is "two hundred twenty-eight million, four hundred six thousand".