36816820 has 48 divisors (see below), whose sum is σ = 79365888. Its totient is φ = 14342400.

The previous prime is 36816803. The next prime is 36816827. The reversal of 36816820 is 2861863.

36816820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36816827) 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 15 ways as a sum of consecutive naturals, for example, 220377 + ... + 220543.

It is an arithmetic number, because the mean of its divisors is an integer number (1653456).

Almost surely, 2^36816820 is an apocalyptic number.

It is an amenable number.

36816820 is an abundant number, since it is smaller than the sum of its proper divisors (42549068).

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

36816820 is a wasteful number, since it uses less digits than its factorization.

36816820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 36816820 is about 6067.6865443099. The cubic root of 36816820 is about 332.6713685001.

It can be divided in two parts, 36816 and 820, that added together give a square (37636 = 194²).

The spelling of 36816820 in words is "thirty-six million, eight hundred sixteen thousand, eight hundred twenty".