2140520 has 32 divisors (see below), whose sum is σ = 4903200. Its totient is φ = 840768.

The previous prime is 2140517. The next prime is 2140531. The reversal of 2140520 is 250412.

It is a junction number, because it is equal to n+sod(n) for n = 2140495 and 2140504.

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, 1907 + ... + 2813.

It is an arithmetic number, because the mean of its divisors is an integer number (153225).

2^2140520 is an apocalyptic number.

2140520 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 2140520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2451600).

2140520 is an abundant number, since it is smaller than the sum of its proper divisors (2762680).

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

2140520 is a wasteful number, since it uses less digits than its factorization.

2140520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2140520 is about 1463.0516053783. The cubic root of 2140520 is about 128.8763111433.

Adding to 2140520 its reverse (250412), we get a palindrome (2390932).

The spelling of 2140520 in words is "two million, one hundred forty thousand, five hundred twenty".