3633820 has 24 divisors (see below), whose sum is σ = 7878528. Its totient is φ = 1406400.

The previous prime is 3633803. The next prime is 3633821. The reversal of 3633820 is 283363.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3633821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2311 + ... + 3550.

It is an arithmetic number, because the mean of its divisors is an integer number (328272).

Almost surely, 2^3633820 is an apocalyptic number.

It is an amenable number.

3633820 is an abundant number, since it is smaller than the sum of its proper divisors (4244708).

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

3633820 is a wasteful number, since it uses less digits than its factorization.

3633820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5901 (or 5899 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 3633820 is about 1906.2581147368. The cubic root of 3633820 is about 153.7403281201.

It can be divided in two parts, 36 and 33820, that added together give a square (33856 = 184²).

The spelling of 3633820 in words is "three million, six hundred thirty-three thousand, eight hundred twenty".