2149373544 has 32 divisors (see below), whose sum is σ = 5487765120. Its totient is φ = 701213696.

The previous prime is 2149373543. The next prime is 2149373587. The reversal of 2149373544 is 4453739412.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2149373496 and 2149373505.

It is not an unprimeable number, because it can be changed into a prime (2149373543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951609 + ... + 953864.

It is an arithmetic number, because the mean of its divisors is an integer number (171492660).

Almost surely, 2^2149373544 is an apocalyptic number.

2149373544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2149373544 is an abundant number, since it is smaller than the sum of its proper divisors (3338391576).

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

2149373544 is a wasteful number, since it uses less digits than its factorization.

2149373544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905529 (or 1905525 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 2149373544 is about 46361.3367365524. The cubic root of 2149373544 is about 1290.5375129146.

The spelling of 2149373544 in words is "two billion, one hundred forty-nine million, three hundred seventy-three thousand, five hundred forty-four".