2440400087 has 2 divisors, whose sum is σ = 2440400088. Its totient is φ = 2440400086.

The previous prime is 2440400069. The next prime is 2440400153. The reversal of 2440400087 is 7800040442.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2440400087 - 2¹⁰ = 2440399063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2440400057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1220200043 + 1220200044.

It is an arithmetic number, because the mean of its divisors is an integer number (1220200044).

Almost surely, 2^2440400087 is an apocalyptic number.

2440400087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2440400087 is an equidigital number, since it uses as much as digits as its factorization.

2440400087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 2440400087 is about 49400.4057372002. The cubic root of 2440400087 is about 1346.3366777219.

The spelling of 2440400087 in words is "two billion, four hundred forty million, four hundred thousand, eighty-seven".