2272178000 has 40 divisors (see below), whose sum is σ = 5494131240. Its totient is φ = 908870400.

The previous prime is 2272177991. The next prime is 2272178003. The reversal of 2272178000 is 8712722.

It can be written as a sum of positive squares in 4 ways, for example, as 413878336 + 1858299664 = 20344^2 + 43108^2 .

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 (2272178003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566045 + ... + 570044.

It is an arithmetic number, because the mean of its divisors is an integer number (137353281).

Almost surely, 2^2272178000 is an apocalyptic number.

2272178000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2272178000 is an abundant number, since it is smaller than the sum of its proper divisors (3221953240).

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

2272178000 is a wasteful number, since it uses less digits than its factorization.

2272178000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136112 (or 1136096 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 2272178000 is about 47667.3682932045. The cubic root of 2272178000 is about 1314.6620209249.

The spelling of 2272178000 in words is "two billion, two hundred seventy-two million, one hundred seventy-eight thousand".