2144857590 has 32 divisors (see below), whose sum is σ = 5719620960. Its totient is φ = 571961952.

The previous prime is 2144857577. The next prime is 2144857591. The reversal of 2144857590 is 957584412.

2144857590 is a `hidden beast` number, since 2 + 1 + 4 + 4 + 8 + 57 + 590 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144857591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3971689 + ... + 3972228.

It is an arithmetic number, because the mean of its divisors is an integer number (178738155).

Almost surely, 2^2144857590 is an apocalyptic number.

2144857590 is an abundant number, since it is smaller than the sum of its proper divisors (3574763370).

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

2144857590 is a wasteful number, since it uses less digits than its factorization.

2144857590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7943933 (or 7943927 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 2144857590 is about 46312.6072468394. The cubic root of 2144857590 is about 1289.6330486832.

The spelling of 2144857590 in words is "two billion, one hundred forty-four million, eight hundred fifty-seven thousand, five hundred ninety".