2378664436 has 24 divisors (see below), whose sum is σ = 4335399936. Its totient is φ = 1140884640.

The previous prime is 2378664413. The next prime is 2378664443. The reversal of 2378664436 is 6344668732.

It is a self number, because there is not a number n which added to its sum of digits gives 2378664436.

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 7 ways as a sum of consecutive naturals, for example, 102676 + ... + 123691.

It is an arithmetic number, because the mean of its divisors is an integer number (180641664).

Almost surely, 2^2378664436 is an apocalyptic number.

It is an amenable number.

2378664436 is a deficient number, since it is larger than the sum of its proper divisors (1956735500).

2378664436 is a wasteful number, since it uses less digits than its factorization.

2378664436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226479 (or 226477 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 49.

The square root of 2378664436 is about 48771.5535532753. The cubic root of 2378664436 is about 1334.8866603176.

The spelling of 2378664436 in words is "two billion, three hundred seventy-eight million, six hundred sixty-four thousand, four hundred thirty-six".