2440400004349 has 2 divisors, whose sum is σ = 2440400004350. Its totient is φ = 2440400004348.

The previous prime is 2440400004319. The next prime is 2440400004359. The reversal of 2440400004349 is 9434000040442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1921877597124 + 518522407225 = 1386318^2 + 720085^2 .

It is a cyclic number.

It is not a de Polignac number, because 2440400004349 - 2³¹ = 2438252520701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2440400004319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1220200002174 + 1220200002175.

It is an arithmetic number, because the mean of its divisors is an integer number (1220200002175).

Almost surely, 2^{2440400004349} is an apocalyptic number.

It is an amenable number.

2440400004349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2440400004349 is an equidigital number, since it uses as much as digits as its factorization.

2440400004349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 2440400004349 in words is "two trillion, four hundred forty billion, four hundred million, four thousand, three hundred forty-nine".