2196240 has 40 divisors (see below), whose sum is σ = 6809088. Its totient is φ = 585600.

The previous prime is 2196239. The next prime is 2196287. The reversal of 2196240 is 426912.

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 (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2196240.

It is a congruent 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, 4336 + ... + 4815.

2^2196240 is an apocalyptic number.

2196240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2196240 is an abundant number, since it is smaller than the sum of its proper divisors (4612848).

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

2196240 is a wasteful number, since it uses less digits than its factorization.

2196240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9167 (or 9161 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2196240 is about 1481.9716596481. The cubic root of 2196240 is about 129.9850081331.

The spelling of 2196240 in words is "two million, one hundred ninety-six thousand, two hundred forty".