2244781 has 8 divisors (see below), whose sum is σ = 2798784. Its totient is φ = 1749120.

The previous prime is 2244779. The next prime is 2244787. The reversal of 2244781 is 1874422.

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

It is a cyclic number.

It is not a de Polignac number, because 2244781 - 2¹ = 2244779 is a prime.

It is a super-2 number, since 2×2244781² = 10078083475922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2244787) 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, 14500 + ... + 14653.

It is an arithmetic number, because the mean of its divisors is an integer number (349848).

2^2244781 is an apocalyptic number.

It is an amenable number.

2244781 is a deficient number, since it is larger than the sum of its proper divisors (554003).

2244781 is a wasteful number, since it uses less digits than its factorization.

2244781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29171.

The product of its digits is 3584, while the sum is 28.

The square root of 2244781 is about 1498.2593233483. The cubic root of 2244781 is about 130.9356753524.

It can be divided in two parts, 2244 and 781, that added together give a square (3025 = 55²).

The spelling of 2244781 in words is "two million, two hundred forty-four thousand, seven hundred eighty-one".