2162440 has 32 divisors (see below), whose sum is σ = 5561280. Its totient is φ = 741312.

The previous prime is 2162401. The next prime is 2162441. The reversal of 2162440 is 442612.

2162440 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2162440² = 9352293507200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2162441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3582 + ... + 4141.

It is an arithmetic number, because the mean of its divisors is an integer number (173790).

2^2162440 is an apocalyptic number.

2162440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2162440 is an abundant number, since it is smaller than the sum of its proper divisors (3398840).

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

2162440 is a wasteful number, since it uses less digits than its factorization.

2162440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7741 (or 7737 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2162440 is about 1470.5237162317. The cubic root of 2162440 is about 129.3147373507.

The spelling of 2162440 in words is "two million, one hundred sixty-two thousand, four hundred forty".