2187460 has 48 divisors (see below), whose sum is σ = 5124672. Its totient is φ = 777600.

The previous prime is 2187457. The next prime is 2187463. The reversal of 2187460 is 647812.

It is an interprime number because it is at equal distance from previous prime (2187457) and next prime (2187463).

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2187463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13339 + ... + 13501.

It is an arithmetic number, because the mean of its divisors is an integer number (106764).

2^2187460 is an apocalyptic number.

2187460 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 2187460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2562336).

2187460 is an abundant number, since it is smaller than the sum of its proper divisors (2937212).

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

2187460 is a wasteful number, since it uses less digits than its factorization.

2187460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 2187460 is about 1479.0064232450. The cubic root of 2187460 is about 129.8115613043.

The spelling of 2187460 in words is "two million, one hundred eighty-seven thousand, four hundred sixty".