2149172322 has 16 divisors (see below), whose sum is σ = 4689103392. Its totient is φ = 651264320.

The previous prime is 2149172257. The next prime is 2149172323. The reversal of 2149172322 is 2232719412.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2149172323) 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, 16281543 + ... + 16281674.

It is an arithmetic number, because the mean of its divisors is an integer number (293068962).

Almost surely, 2^2149172322 is an apocalyptic number.

2149172322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2149172322 is an abundant number, since it is smaller than the sum of its proper divisors (2539931070).

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

2149172322 is a wasteful number, since it uses less digits than its factorization.

2149172322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32563233.

The product of its digits is 12096, while the sum is 33.

The square root of 2149172322 is about 46359.1665369428. The cubic root of 2149172322 is about 1290.4972387544.

It can be divided in two parts, 2149 and 172322, that added together give a palindrome (174471).

The spelling of 2149172322 in words is "two billion, one hundred forty-nine million, one hundred seventy-two thousand, three hundred twenty-two".