2173401056 has 24 divisors (see below), whose sum is σ = 4426432920. Its totient is φ = 1049227648.

The previous prime is 2173401047. The next prime is 2173401059. The reversal of 2173401056 is 6501043712.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173401059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1170086 + ... + 1171941.

It is an arithmetic number, because the mean of its divisors is an integer number (184434705).

Almost surely, 2^2173401056 is an apocalyptic number.

It is an amenable number.

2173401056 is an abundant number, since it is smaller than the sum of its proper divisors (2253031864).

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

2173401056 is a wasteful number, since it uses less digits than its factorization.

2173401056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342066 (or 2342058 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 2173401056 is about 46619.7496346774. The cubic root of 2173401056 is about 1295.3286099779.

Adding to 2173401056 its reverse (6501043712), we get a palindrome (8674444768).

The spelling of 2173401056 in words is "two billion, one hundred seventy-three million, four hundred one thousand, fifty-six".