2144722 has 8 divisors (see below), whose sum is σ = 3253500. Its totient is φ = 1060224.

The previous prime is 2144719. The next prime is 2144729. The reversal of 2144722 is 2274412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2134521 + 10201 = 1461^2 + 101^2 .

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

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 2144693 and 2144702.

It is not an unprimeable number, because it can be changed into a prime (2144729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5847 + ... + 6202.

2^2144722 is an apocalyptic number.

2144722 is a deficient number, since it is larger than the sum of its proper divisors (1108778).

2144722 is a wasteful number, since it uses less digits than its factorization.

2144722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12140.

The product of its digits is 896, while the sum is 22.

The square root of 2144722 is about 1464.4869408772. The cubic root of 2144722 is about 128.9605872826.

It can be divided in two parts, 2 and 144722, that multiplied together give a square (289444 = 538²).

The spelling of 2144722 in words is "two million, one hundred forty-four thousand, seven hundred twenty-two".