2149960 has 32 divisors (see below), whose sum is σ = 4924800. Its totient is φ = 844480.

The previous prime is 2149937. The next prime is 2149991. The reversal of 2149960 is 699412.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1905 + ... + 2815.

It is an arithmetic number, because the mean of its divisors is an integer number (153900).

2^2149960 is an apocalyptic number.

2149960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2149960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2462400).

2149960 is an abundant number, since it is smaller than the sum of its proper divisors (2774840).

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

2149960 is a wasteful number, since it uses less digits than its factorization.

2149960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981 (or 977 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2149960 is about 1466.2741899113. The cubic root of 2149960 is about 129.0654876514.

The spelling of 2149960 in words is "two million, one hundred forty-nine thousand, nine hundred sixty".