2440373 has 4 divisors (see below), whose sum is σ = 2628108. Its totient is φ = 2252640.

The previous prime is 2440363. The next prime is 2440387. The reversal of 2440373 is 3730442.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3730442 = 2 ⋅1865221.

It can be written as a sum of positive squares in 2 ways, for example, as 386884 + 2053489 = 622^2 + 1433^2 .

It is not a de Polignac number, because 2440373 - 2¹² = 2436277 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440313) 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, 93848 + ... + 93873.

It is an arithmetic number, because the mean of its divisors is an integer number (657027).

2^2440373 is an apocalyptic number.

It is an amenable number.

2440373 is a deficient number, since it is larger than the sum of its proper divisors (187735).

2440373 is a wasteful number, since it uses less digits than its factorization.

2440373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187734.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 2440373 is about 1562.1693250093. The cubic root of 2440373 is about 134.6331696523.

The spelling of 2440373 in words is "two million, four hundred forty thousand, three hundred seventy-three".