36745644 has 48 divisors (see below), whose sum is σ = 93225440. Its totient is φ = 11197440.

The previous prime is 36745627. The next prime is 36745649. The reversal of 36745644 is 44654763.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (36745649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15924 + ... + 18084.

Almost surely, 2^36745644 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 36745644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46612720).

36745644 is an abundant number, since it is smaller than the sum of its proper divisors (56479796).

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

36745644 is a wasteful number, since it uses less digits than its factorization.

36745644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290 (or 2288 counting only the distinct ones).

The product of its digits is 241920, while the sum is 39.

The square root of 36745644 is about 6061.8185390195. The cubic root of 36745644 is about 332.4568515814.

The spelling of 36745644 in words is "thirty-six million, seven hundred forty-five thousand, six hundred forty-four".