2149255944 has 160 divisors (see below), whose sum is σ = 6676179840. Its totient is φ = 640483200.

The previous prime is 2149255943. The next prime is 2149255951. The reversal of 2149255944 is 4495529412.

2149255944 is a `hidden beast` number, since 2 + 1 + 4 + 92 + 559 + 4 + 4 = 666.

It is a super-2 number, since 2×2149255944² = 9238602225638662272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2149255944.

It is not an unprimeable number, because it can be changed into a prime (2149255943) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 432337 + ... + 437279.

It is an arithmetic number, because the mean of its divisors is an integer number (41726124).

Almost surely, 2^2149255944 is an apocalyptic number.

2149255944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2149255944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3338089920).

2149255944 is an abundant number, since it is smaller than the sum of its proper divisors (4526923896).

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

2149255944 is a wasteful number, since it uses less digits than its factorization.

2149255944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033 (or 5020 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 2149255944 is about 46360.0684210021. The cubic root of 2149255944 is about 1290.5139758271.

The spelling of 2149255944 in words is "two billion, one hundred forty-nine million, two hundred fifty-five thousand, nine hundred forty-four".