2193748172 has 24 divisors (see below), whose sum is σ = 4786360320. Its totient is φ = 854706960.

The previous prime is 2193748163. The next prime is 2193748199. The reversal of 2193748172 is 2718473912.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3560972 + ... + 3561587.

It is an arithmetic number, because the mean of its divisors is an integer number (199431680).

Almost surely, 2^2193748172 is an apocalyptic number.

2193748172 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2193748172 is an abundant number, since it is smaller than the sum of its proper divisors (2592612148).

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

2193748172 is a wasteful number, since it uses less digits than its factorization.

2193748172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122581 (or 7122579 counting only the distinct ones).

The product of its digits is 169344, while the sum is 44.

The square root of 2193748172 is about 46837.4654736996. The cubic root of 2193748172 is about 1299.3582971030.

The spelling of 2193748172 in words is "two billion, one hundred ninety-three million, seven hundred forty-eight thousand, one hundred seventy-two".