2144470140 has 84 divisors (see below), whose sum is σ = 6752038104. Its totient is φ = 571854816.

The previous prime is 2144470123. The next prime is 2144470147. The reversal of 2144470140 is 410744412.

2144470140 is a `hidden beast` number, since 214 + 447 + 0 + 1 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144470147) 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 27 ways as a sum of consecutive naturals, for example, 58962 + ... + 88121.

It is an arithmetic number, because the mean of its divisors is an integer number (80381406).

Almost surely, 2^2144470140 is an apocalyptic number.

2144470140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144470140 is an abundant number, since it is smaller than the sum of its proper divisors (4607567964).

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

2144470140 is a wasteful number, since it uses less digits than its factorization.

2144470140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147110 (or 147093 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 2144470140 is about 46308.4240716524. The cubic root of 2144470140 is about 1289.5553903161. Note that the first 3 decimals are identical.

The spelling of 2144470140 in words is "two billion, one hundred forty-four million, four hundred seventy thousand, one hundred forty".