2043722 has 4 divisors (see below), whose sum is σ = 3065586. Its totient is φ = 1021860.

The previous prime is 2043721. The next prime is 2043739. The reversal of 2043722 is 2273402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2042041 + 1681 = 1429^2 + 41^2 .

It is a super-2 number, since 2×2043722² = 8353599226568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2043694 and 2043703.

It is not an unprimeable number, because it can be changed into a prime (2043721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510929 + ... + 510932.

2^2043722 is an apocalyptic number.

2043722 is a deficient number, since it is larger than the sum of its proper divisors (1021864).

2043722 is a wasteful number, since it uses less digits than its factorization.

2043722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021863.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 2043722 is about 1429.5880525522. The cubic root of 2043722 is about 126.9035993186.

The spelling of 2043722 in words is "two million, forty-three thousand, seven hundred twenty-two".