2102604805 has 16 divisors (see below), whose sum is σ = 2900248704. Its totient is φ = 1433448000.

The previous prime is 2102604799. The next prime is 2102604811. The reversal of 2102604805 is 5084062012.

It is an interprime number because it is at equal distance from previous prime (2102604799) and next prime (2102604811).

It is not a de Polignac number, because 2102604805 - 2¹⁵ = 2102572037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167571 + ... + 179680.

It is an arithmetic number, because the mean of its divisors is an integer number (181265544).

Almost surely, 2^2102604805 is an apocalyptic number.

It is an amenable number.

2102604805 is a deficient number, since it is larger than the sum of its proper divisors (797643899).

2102604805 is a wasteful number, since it uses less digits than its factorization.

2102604805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347436.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 2102604805 is about 45854.1688944419. The cubic root of 2102604805 is about 1281.1084159075.

Adding to 2102604805 its reverse (5084062012), we get a palindrome (7186666817).

The spelling of 2102604805 in words is "two billion, one hundred two million, six hundred four thousand, eight hundred five".