2161460 has 24 divisors (see below), whose sum is σ = 5187840. Its totient is φ = 741024.

The previous prime is 2161447. The next prime is 2161469. The reversal of 2161460 is 641612.

It is a happy number.

2161460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7580 + ... + 7859.

It is an arithmetic number, because the mean of its divisors is an integer number (216160).

2^2161460 is an apocalyptic number.

2161460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2161460 is an abundant number, since it is smaller than the sum of its proper divisors (3026380).

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

2161460 is a wasteful number, since it uses less digits than its factorization.

2161460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15455 (or 15453 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2161460 is about 1470.1904638515. The cubic root of 2161460 is about 129.2951996076.

The spelling of 2161460 in words is "two million, one hundred sixty-one thousand, four hundred sixty".