36221964 has 48 divisors (see below), whose sum is σ = 90601728. Its totient is φ = 11233728.

The previous prime is 36221963. The next prime is 36221989. The reversal of 36221964 is 46912263.

It is not an unprimeable number, because it can be changed into a prime (36221963) 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, 8439 + ... + 11985.

It is an arithmetic number, because the mean of its divisors is an integer number (1887536).

Almost surely, 2^36221964 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 36221964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45300864).

36221964 is an abundant number, since it is smaller than the sum of its proper divisors (54379764).

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

36221964 is a wasteful number, since it uses less digits than its factorization.

36221964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614 (or 3612 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 36221964 is about 6018.4685759751. The cubic root of 36221964 is about 330.8699543594.

The spelling of 36221964 in words is "thirty-six million, two hundred twenty-one thousand, nine hundred sixty-four".