2240144 has 10 divisors (see below), whose sum is σ = 4340310. Its totient is φ = 1120064.

The previous prime is 2240137. The next prime is 2240159. The reversal of 2240144 is 4410422.

It can be written as a sum of positive squares in only one way, i.e., 1926544 + 313600 = 1388^2 + 560^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69989 + ... + 70020.

It is an arithmetic number, because the mean of its divisors is an integer number (434031).

2^2240144 is an apocalyptic number.

It is an amenable number.

2240144 is a deficient number, since it is larger than the sum of its proper divisors (2100166).

2240144 is a wasteful number, since it uses less digits than its factorization.

2240144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140017 (or 140011 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2240144 is about 1496.7110609600. The cubic root of 2240144 is about 130.8454561186.

Adding to 2240144 its reverse (4410422), we get a palindrome (6650566).

The spelling of 2240144 in words is "two million, two hundred forty thousand, one hundred forty-four".