2170944 has 42 divisors (see below), whose sum is σ = 6224270. Its totient is φ = 723456.

The previous prime is 2170943. The next prime is 2171003. The reversal of 2170944 is 4490712.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2073600 + 97344 = 1440^2 + 312^2 .

It is a super-2 number, since 2×2170944² = 9425995702272, which contains 22 as substring.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2170943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1309 + ... + 2460.

2^2170944 is an apocalyptic number.

2170944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2170944 is an abundant number, since it is smaller than the sum of its proper divisors (4053326).

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

2170944 is a wasteful number, since it uses less digits than its factorization.

2170944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787 (or 3774 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2170944 is about 1473.4123659044. The cubic root of 2170944 is about 129.4840297733.

The spelling of 2170944 in words is "two million, one hundred seventy thousand, nine hundred forty-four".