229778000 has 40 divisors (see below), whose sum is σ = 555608040. Its totient is φ = 91910400.

The previous prime is 229777993. The next prime is 229778047. The reversal of 229778000 is 877922.

It can be written as a sum of positive squares in 4 ways, for example, as 7529536 + 222248464 = 2744^2 + 14908^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55445 + ... + 59444.

It is an arithmetic number, because the mean of its divisors is an integer number (13890201).

Almost surely, 2^229778000 is an apocalyptic number.

229778000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229778000 is an abundant number, since it is smaller than the sum of its proper divisors (325830040).

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

229778000 is a wasteful number, since it uses less digits than its factorization.

229778000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114912 (or 114896 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 229778000 is about 15158.4299978593. The cubic root of 229778000 is about 612.4953768914.

The spelling of 229778000 in words is "two hundred twenty-nine million, seven hundred seventy-eight thousand".