2116240 has 40 divisors (see below), whose sum is σ = 5624640. Its totient is φ = 725376.

The previous prime is 2116199. The next prime is 2116291. The reversal of 2116240 is 426112.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 1330 + ... + 2449.

It is an arithmetic number, because the mean of its divisors is an integer number (140616).

2^2116240 is an apocalyptic number.

2116240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2116240 is an abundant number, since it is smaller than the sum of its proper divisors (3508400).

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

2116240 is a wasteful number, since it uses less digits than its factorization.

2116240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3799 (or 3793 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2116240 is about 1454.7302155383. The cubic root of 2116240 is about 128.3871740504.

It can be divided in two parts, 21 and 16240, that added together give a palindrome (16261).

The spelling of 2116240 in words is "two million, one hundred sixteen thousand, two hundred forty".