2175672440 has 32 divisors (see below), whose sum is σ = 4910734080. Its totient is φ = 867518592.

The previous prime is 2175672431. The next prime is 2175672451. The reversal of 2175672440 is 442765712.

It is a junction number, because it is equal to n+sod(n) for n = 2175672394 and 2175672403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73112 + ... + 98471.

It is an arithmetic number, because the mean of its divisors is an integer number (153460440).

Almost surely, 2^2175672440 is an apocalyptic number.

2175672440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2175672440 is an abundant number, since it is smaller than the sum of its proper divisors (2735061640).

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

2175672440 is a wasteful number, since it uses less digits than its factorization.

2175672440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171911 (or 171907 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 2175672440 is about 46644.1040218375. The cubic root of 2175672440 is about 1295.7796947455.

The spelling of 2175672440 in words is "two billion, one hundred seventy-five million, six hundred seventy-two thousand, four hundred forty".