36621816 has 192 divisors, whose sum is σ = 123120000. Its totient is φ = 8951040.

The previous prime is 36621811. The next prime is 36621833. The reversal of 36621816 is 61812663.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36621811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 245710 + ... + 245858.

It is an arithmetic number, because the mean of its divisors is an integer number (641250).

Almost surely, 2^36621816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36621816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61560000).

36621816 is an abundant number, since it is smaller than the sum of its proper divisors (86498184).

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

36621816 is a wasteful number, since it uses less digits than its factorization.

36621816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 191 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 36621816 is about 6051.5961530823. The cubic root of 36621816 is about 332.0829859810.

The spelling of 36621816 in words is "thirty-six million, six hundred twenty-one thousand, eight hundred sixteen".