1724138922 has 48 divisors (see below), whose sum is σ = 3878471520. Its totient is φ = 510306720.

The previous prime is 1724138921. The next prime is 1724138947. The reversal of 1724138922 is 2298314271.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1724138921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3604 + ... + 58832.

It is an arithmetic number, because the mean of its divisors is an integer number (80801490).

Almost surely, 2^1724138922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1724138922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1939235760).

1724138922 is an abundant number, since it is smaller than the sum of its proper divisors (2154332598).

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

1724138922 is a wasteful number, since it uses less digits than its factorization.

1724138922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55299 (or 55288 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 1724138922 is about 41522.7518596733. The cubic root of 1724138922 is about 1199.1055654324.

The spelling of 1724138922 in words is "one billion, seven hundred twenty-four million, one hundred thirty-eight thousand, nine hundred twenty-two".