2390641855 has 8 divisors (see below), whose sum is σ = 3278594592. Its totient is φ = 1639297248.

The previous prime is 2390641853. The next prime is 2390641867. The reversal of 2390641855 is 5581460932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2390641855 - 2¹ = 2390641853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390641853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34151992 + ... + 34152061.

It is an arithmetic number, because the mean of its divisors is an integer number (409824324).

Almost surely, 2^2390641855 is an apocalyptic number.

2390641855 is a deficient number, since it is larger than the sum of its proper divisors (887952737).

2390641855 is an equidigital number, since it uses as much as digits as its factorization.

2390641855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68304065.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 2390641855 is about 48894.1904013146. The cubic root of 2390641855 is about 1337.1234527391.

The spelling of 2390641855 in words is "two billion, three hundred ninety million, six hundred forty-one thousand, eight hundred fifty-five".