36221445 has 32 divisors (see below), whose sum is σ = 69350400. Its totient is φ = 17831232.

The previous prime is 36221413. The next prime is 36221447. The reversal of 36221445 is 54412263.

It is not a de Polignac number, because 36221445 - 2⁵ = 36221413 is a prime.

It is a super-3 number, since 3×36221445³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36221447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8565 + ... + 12074.

It is an arithmetic number, because the mean of its divisors is an integer number (2167200).

Almost surely, 2^36221445 is an apocalyptic number.

It is an amenable number.

36221445 is a deficient number, since it is larger than the sum of its proper divisors (33128955).

36221445 is a wasteful number, since it uses less digits than its factorization.

36221445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20666 (or 20660 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 36221445 is about 6018.4254585398. The cubic root of 36221445 is about 330.8683740813.

The spelling of 36221445 in words is "thirty-six million, two hundred twenty-one thousand, four hundred forty-five".