2400217873 has 4 divisors (see below), whose sum is σ = 2477644288. Its totient is φ = 2322791460.

The previous prime is 2400217847. The next prime is 2400217957. The reversal of 2400217873 is 3787120042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3787120042 = 2 ⋅1893560021.

It is a cyclic number.

It is not a de Polignac number, because 2400217873 - 2²¹ = 2398120721 is a prime.

It is a super-2 number, since 2×2400217873² = 11522091675737288258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2400217843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38713161 + ... + 38713222.

It is an arithmetic number, because the mean of its divisors is an integer number (619411072).

Almost surely, 2^2400217873 is an apocalyptic number.

It is an amenable number.

2400217873 is a deficient number, since it is larger than the sum of its proper divisors (77426415).

2400217873 is an equidigital number, since it uses as much as digits as its factorization.

2400217873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77426414.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 2400217873 is about 48992.0184621944. The cubic root of 2400217873 is about 1338.9064132065.

The spelling of 2400217873 in words is "two billion, four hundred million, two hundred seventeen thousand, eight hundred seventy-three".