2246721 has 8 divisors (see below), whose sum is σ = 3036960. Its totient is φ = 1477152.

The previous prime is 2246689. The next prime is 2246749. The reversal of 2246721 is 1276422.

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

It is not a de Polignac number, because 2246721 - 2⁵ = 2246689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2246691 and 2246700.

It is not an unprimeable number, because it can be changed into a prime (2246791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4911 + ... + 5348.

It is an arithmetic number, because the mean of its divisors is an integer number (379620).

2^2246721 is an apocalyptic number.

It is an amenable number.

2246721 is a deficient number, since it is larger than the sum of its proper divisors (790239).

2246721 is a wasteful number, since it uses less digits than its factorization.

2246721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10335.

The product of its digits is 1344, while the sum is 24.

The square root of 2246721 is about 1498.9066014932. The cubic root of 2246721 is about 130.9733838667.

Subtracting from 2246721 its reverse (1276422), we obtain a cube (970299 = 99³).

The spelling of 2246721 in words is "two million, two hundred forty-six thousand, seven hundred twenty-one".