2173490388 has 24 divisors (see below), whose sum is σ = 5634975360. Its totient is φ = 724496760.

The previous prime is 2173490387. The next prime is 2173490413. The reversal of 2173490388 is 8830943712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173490387) by changing a digit.

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, 10062348 + ... + 10062563.

It is an arithmetic number, because the mean of its divisors is an integer number (234790640).

Almost surely, 2^2173490388 is an apocalyptic number.

It is an amenable number.

2173490388 is an abundant number, since it is smaller than the sum of its proper divisors (3461484972).

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

2173490388 is a wasteful number, since it uses less digits than its factorization.

2173490388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20124924 (or 20124916 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 2173490388 is about 46620.7077166360. The cubic root of 2173490388 is about 1295.3463567731.

The spelling of 2173490388 in words is "two billion, one hundred seventy-three million, four hundred ninety thousand, three hundred eighty-eight".