2144423460 has 48 divisors (see below), whose sum is σ = 6117685056. Its totient is φ = 561055872.

The previous prime is 2144423447. The next prime is 2144423461. The reversal of 2144423460 is 643244412.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2144423461) 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 15 ways as a sum of consecutive naturals, for example, 333994 + ... + 340353.

It is an arithmetic number, because the mean of its divisors is an integer number (127451772).

Almost surely, 2^2144423460 is an apocalyptic number.

2144423460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144423460 is an abundant number, since it is smaller than the sum of its proper divisors (3973261596).

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

2144423460 is a wasteful number, since it uses less digits than its factorization.

2144423460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674412 (or 674410 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 2144423460 is about 46307.9200569406. The cubic root of 2144423460 is about 1289.5460333998.

Adding to 2144423460 its reverse (643244412), we get a palindrome (2787667872).

The spelling of 2144423460 in words is "two billion, one hundred forty-four million, four hundred twenty-three thousand, four hundred sixty".