2231744 has 14 divisors (see below), whose sum is σ = 4428744. Its totient is φ = 1115840.

The previous prime is 2231737. The next prime is 2231767. The reversal of 2231744 is 4471322.

It is a super-3 number, since 3×2231744³ = 33346816697940836352, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17372 + ... + 17499.

2^2231744 is an apocalyptic number.

It is an amenable number.

2231744 is a deficient number, since it is larger than the sum of its proper divisors (2197000).

2231744 is an equidigital number, since it uses as much as digits as its factorization.

2231744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34883 (or 34873 counting only the distinct ones).

The product of its digits is 1344, while the sum is 23.

The square root of 2231744 is about 1493.9022725734. The cubic root of 2231744 is about 130.6817049655.

The spelling of 2231744 in words is "two million, two hundred thirty-one thousand, seven hundred forty-four".