2240686 has 8 divisors (see below), whose sum is σ = 3841200. Its totient is φ = 960288.

The previous prime is 2240669. The next prime is 2240699. The reversal of 2240686 is 6860422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80011 + ... + 80038.

It is an arithmetic number, because the mean of its divisors is an integer number (480150).

2^2240686 is an apocalyptic number.

2240686 is a deficient number, since it is larger than the sum of its proper divisors (1600514).

2240686 is a wasteful number, since it uses less digits than its factorization.

2240686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160058.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 2240686 is about 1496.8921136809. The cubic root of 2240686 is about 130.8560078984.

It can be divided in two parts, 2240 and 686, that added together give a triangular number (2926 = T₇₆).

The spelling of 2240686 in words is "two million, two hundred forty thousand, six hundred eighty-six".