2240406457 has 4 divisors (see below), whose sum is σ = 2262158080. Its totient is φ = 2218654836.

The previous prime is 2240406449. The next prime is 2240406463. The reversal of 2240406457 is 7546040422.

2240406457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2240406457 - 2³ = 2240406449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2240404457) 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, 10875657 + ... + 10875862.

It is an arithmetic number, because the mean of its divisors is an integer number (565539520).

Almost surely, 2^2240406457 is an apocalyptic number.

It is an amenable number.

2240406457 is a deficient number, since it is larger than the sum of its proper divisors (21751623).

2240406457 is a wasteful number, since it uses less digits than its factorization.

2240406457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21751622.

The product of its (nonzero) digits is 53760, while the sum is 34.

The square root of 2240406457 is about 47332.9320558108. The cubic root of 2240406457 is about 1308.5056590391.

Adding to 2240406457 its reverse (7546040422), we get a palindrome (9786446879).

The spelling of 2240406457 in words is "two billion, two hundred forty million, four hundred six thousand, four hundred fifty-seven".