2434391885 has 4 divisors (see below), whose sum is σ = 2921270268. Its totient is φ = 1947513504.

The previous prime is 2434391779. The next prime is 2434391957. The reversal of 2434391885 is 5881934342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5881934342 = 2 ⋅2940967171.

It can be written as a sum of positive squares in 2 ways, for example, as 735385924 + 1699005961 = 27118^2 + 41219^2 .

It is a cyclic number.

It is not a de Polignac number, because 2434391885 - 2²⁰ = 2433343309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 243439184 + ... + 243439193.

It is an arithmetic number, because the mean of its divisors is an integer number (730317567).

Almost surely, 2^2434391885 is an apocalyptic number.

It is an amenable number.

2434391885 is a deficient number, since it is larger than the sum of its proper divisors (486878383).

2434391885 is an equidigital number, since it uses as much as digits as its factorization.

2434391885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486878382.

The product of its digits is 829440, while the sum is 47.

The square root of 2434391885 is about 49339.5570004434. The cubic root of 2434391885 is about 1345.2308877038.

The spelling of 2434391885 in words is "two billion, four hundred thirty-four million, three hundred ninety-one thousand, eight hundred eighty-five".