2404636820 has 24 divisors (see below), whose sum is σ = 5053897800. Its totient is φ = 961062272.

The previous prime is 2404636781. The next prime is 2404636823. The reversal of 2404636820 is 286364042.

2404636820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1096801924 + 1307834896 = 33118^2 + 36164^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2404636823) 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, 24335 + ... + 73494.

It is an arithmetic number, because the mean of its divisors is an integer number (210579075).

Almost surely, 2^2404636820 is an apocalyptic number.

2404636820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2404636820 is an abundant number, since it is smaller than the sum of its proper divisors (2649260980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2404636820 is a wasteful number, since it uses less digits than its factorization.

2404636820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99067 (or 99065 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 2404636820 is about 49037.0963659147. The cubic root of 2404636820 is about 1339.7275788377.

The spelling of 2404636820 in words is "two billion, four hundred four million, six hundred thirty-six thousand, eight hundred twenty".