4636820 has 12 divisors (see below), whose sum is σ = 9737364. Its totient is φ = 1854720.

The previous prime is 4636799. The next prime is 4636829. The reversal of 4636820 is 286364.

It can be written as a sum of positive squares in 2 ways, for example, as 2835856 + 1800964 = 1684^2 + 1342^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4636829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115901 + ... + 115940.

It is an arithmetic number, because the mean of its divisors is an integer number (811447).

Almost surely, 2^4636820 is an apocalyptic number.

It is an amenable number.

4636820 is an abundant number, since it is smaller than the sum of its proper divisors (5100544).

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

4636820 is a wasteful number, since it uses less digits than its factorization.

4636820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231850 (or 231848 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 4636820 is about 2153.3276573713. The cubic root of 4636820 is about 166.7529064796.

It can be divided in two parts, 46 and 36820, that multiplied together give a triangular number (1693720 = T₁₈₄₀).

The spelling of 4636820 in words is "four million, six hundred thirty-six thousand, eight hundred twenty".