2440258687 has 2 divisors, whose sum is σ = 2440258688. Its totient is φ = 2440258686.

The previous prime is 2440258649. The next prime is 2440258697. The reversal of 2440258687 is 7868520442.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2440258687 - 2¹⁵ = 2440225919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2440258607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1220129343 + 1220129344.

It is an arithmetic number, because the mean of its divisors is an integer number (1220129344).

Almost surely, 2^2440258687 is an apocalyptic number.

2440258687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2440258687 is an equidigital number, since it uses as much as digits as its factorization.

2440258687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 860160, while the sum is 46.

The square root of 2440258687 is about 49398.9745541342. The cubic root of 2440258687 is about 1346.3106743787.

It can be divided in two parts, 2440258 and 687, that added together give a triangular number (2440945 = T₂₂₀₉).

The spelling of 2440258687 in words is "two billion, four hundred forty million, two hundred fifty-eight thousand, six hundred eighty-seven".