36866820 has 48 divisors (see below), whose sum is σ = 103799808. Its totient is φ = 9776640.

The previous prime is 36866813. The next prime is 36866827. The reversal of 36866820 is 2866863.

It is an interprime number because it is at equal distance from previous prime (36866813) and next prime (36866827).

It is not an unprimeable number, because it can be changed into a prime (36866827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9852 + ... + 13068.

It is an arithmetic number, because the mean of its divisors is an integer number (2162496).

Almost surely, 2^36866820 is an apocalyptic number.

36866820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

36866820 is an abundant number, since it is smaller than the sum of its proper divisors (66932988).

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

36866820 is a wasteful number, since it uses less digits than its factorization.

36866820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420 (or 3418 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 36866820 is about 6071.8053328479. The cubic root of 36866820 is about 332.8218979250.

The spelling of 36866820 in words is "thirty-six million, eight hundred sixty-six thousand, eight hundred twenty".