2148322449 has 32 divisors (see below), whose sum is σ = 3567965184. Its totient is φ = 1119516480.

The previous prime is 2148322433. The next prime is 2148322471. The reversal of 2148322449 is 9442238412.

It is not a de Polignac number, because 2148322449 - 2⁴ = 2148322433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2148322489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24747 + ... + 70064.

It is an arithmetic number, because the mean of its divisors is an integer number (111498912).

Almost surely, 2^2148322449 is an apocalyptic number.

It is an amenable number.

2148322449 is a deficient number, since it is larger than the sum of its proper divisors (1419642735).

2148322449 is a wasteful number, since it uses less digits than its factorization.

2148322449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94917.

The product of its digits is 110592, while the sum is 39.

The square root of 2148322449 is about 46349.9994498382. Note that the first 3 decimals coincide. The cubic root of 2148322449 is about 1290.3271107244.

The spelling of 2148322449 in words is "two billion, one hundred forty-eight million, three hundred twenty-two thousand, four hundred forty-nine".