2173400126 has 16 divisors (see below), whose sum is σ = 3304881600. Its totient is φ = 1071802368.

The previous prime is 2173400123. The next prime is 2173400129. The reversal of 2173400126 is 6210043712.

It is an interprime number because it is at equal distance from previous prime (2173400123) and next prime (2173400129).

It is a junction number, because it is equal to n+sod(n) for n = 2173400095 and 2173400104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173400123) 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, 152606 + ... + 166238.

It is an arithmetic number, because the mean of its divisors is an integer number (206555100).

Almost surely, 2^2173400126 is an apocalyptic number.

2173400126 is a deficient number, since it is larger than the sum of its proper divisors (1131481474).

2173400126 is a wasteful number, since it uses less digits than its factorization.

2173400126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14723.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2173400126 is about 46619.7396603628. The cubic root of 2173400126 is about 1295.3284252205.

Adding to 2173400126 its reverse (6210043712), we get a palindrome (8383443838).

The spelling of 2173400126 in words is "two billion, one hundred seventy-three million, four hundred thousand, one hundred twenty-six".