2175890472 has 256 divisors, whose sum is σ = 7223040000. Its totient is φ = 606336192.

The previous prime is 2175890449. The next prime is 2175890491. The reversal of 2175890472 is 2740985712.

It is a happy number.

2175890472 is a `hidden beast` number, since 2 + 175 + 8 + 9 + 0 + 472 = 666.

It is a super-2 number, since 2×2175890472² = 9468998692280765568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3185443 + ... + 3186125.

It is an arithmetic number, because the mean of its divisors is an integer number (28215000).

Almost surely, 2^2175890472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2175890472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3611520000).

2175890472 is an abundant number, since it is smaller than the sum of its proper divisors (5047149528).

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

2175890472 is a wasteful number, since it uses less digits than its factorization.

2175890472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 2175890472 is about 46646.4411504243. The cubic root of 2175890472 is about 1295.8229782221.

The spelling of 2175890472 in words is "two billion, one hundred seventy-five million, eight hundred ninety thousand, four hundred seventy-two".