2172750 has 32 divisors (see below), whose sum is σ = 5425056. Its totient is φ = 579200.

The previous prime is 2172733. The next prime is 2172761. The reversal of 2172750 is 572712.

It is a self number, because there is not a number n which added to its sum of digits gives 2172750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 699 + ... + 2198.

It is an arithmetic number, because the mean of its divisors is an integer number (169533).

2^2172750 is an apocalyptic number.

2172750 is an abundant number, since it is smaller than the sum of its proper divisors (3252306).

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

2172750 is a wasteful number, since it uses less digits than its factorization.

2172750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917 (or 2907 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 2172750 is about 1474.0251015502. The cubic root of 2172750 is about 129.5199255775.

It can be divided in two parts, 21 and 72750, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 2172750 in words is "two million, one hundred seventy-two thousand, seven hundred fifty".