2146720 has 24 divisors (see below), whose sum is σ = 5072004. Its totient is φ = 858624.

The previous prime is 2146693. The next prime is 2146723. The reversal of 2146720 is 276412.

2146720 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2108304 + 38416 = 1452^2 + 196^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2146691 and 2146700.

It is not an unprimeable number, because it can be changed into a prime (2146723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6549 + ... + 6868.

2^2146720 is an apocalyptic number.

2146720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2146720 is an abundant number, since it is smaller than the sum of its proper divisors (2925284).

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

2146720 is a wasteful number, since it uses less digits than its factorization.

2146720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13432 (or 13424 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2146720 is about 1465.1689322396. The cubic root of 2146720 is about 129.0006209533. Note that the first 3 decimals are identical.

The spelling of 2146720 in words is "two million, one hundred forty-six thousand, seven hundred twenty".