2440040255403 has 16 divisors (see below), whose sum is σ = 3424651726080. Its totient is φ = 1541062835424.

The previous prime is 2440040255377. The next prime is 2440040255407. The reversal of 2440040255403 is 3045520400442.

It is not a de Polignac number, because 2440040255403 - 2⁹ = 2440040254891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2440040255407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9449925 + ... + 9704697.

It is an arithmetic number, because the mean of its divisors is an integer number (214040732880).

Almost surely, 2^{2440040255403} is an apocalyptic number.

2440040255403 is a deficient number, since it is larger than the sum of its proper divisors (984611470677).

2440040255403 is a wasteful number, since it uses less digits than its factorization.

2440040255403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422818.

The product of its (nonzero) digits is 76800, while the sum is 33.

Adding to 2440040255403 its reverse (3045520400442), we get a palindrome (5485560655845).

The spelling of 2440040255403 in words is "two trillion, four hundred forty billion, forty million, two hundred fifty-five thousand, four hundred three".