2240072 has 8 divisors (see below), whose sum is σ = 4200150. Its totient is φ = 1120032.

The previous prime is 2240071. The next prime is 2240083. The reversal of 2240072 is 2700422.

2240072 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1267876 + 972196 = 1126^2 + 986^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 2240072.

It is not an unprimeable number, because it can be changed into a prime (2240071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139997 + ... + 140012.

2^2240072 is an apocalyptic number.

It is an amenable number.

2240072 is a deficient number, since it is larger than the sum of its proper divisors (1960078).

2240072 is a wasteful number, since it uses less digits than its factorization.

2240072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280015 (or 280011 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 2240072 is about 1496.6870080281. The cubic root of 2240072 is about 130.8440542781.

Adding to 2240072 its reverse (2700422), we get a palindrome (4940494).

The spelling of 2240072 in words is "two million, two hundred forty thousand, seventy-two".