2180790 has 64 divisors (see below), whose sum is σ = 5987520. Its totient is φ = 564480.

The previous prime is 2180747. The next prime is 2180797. The reversal of 2180790 is 970812.

2180790 = T₃₉ + T₄₀ + ... + T₂₃₅.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10972 + ... + 11168.

It is an arithmetic number, because the mean of its divisors is an integer number (93555).

2^2180790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2180790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2993760).

2180790 is an abundant number, since it is smaller than the sum of its proper divisors (3806730).

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

2180790 is a wasteful number, since it uses less digits than its factorization.

2180790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 2180790 is about 1476.7498095480. The cubic root of 2180790 is about 129.6794865615.

The spelling of 2180790 in words is "two million, one hundred eighty thousand, seven hundred ninety".