36121944 has 64 divisors (see below), whose sum is σ = 95293440. Its totient is φ = 11393280.

The previous prime is 36121909. The next prime is 36121949. The reversal of 36121944 is 44912163.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36121949) 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, 34452 + ... + 35484.

It is an arithmetic number, because the mean of its divisors is an integer number (1488960).

Almost surely, 2^36121944 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 36121944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47646720).

36121944 is an abundant number, since it is smaller than the sum of its proper divisors (59171496).

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

36121944 is a wasteful number, since it uses less digits than its factorization.

36121944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120 (or 1116 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 36121944 is about 6010.1534090238. The cubic root of 36121944 is about 330.5651289943.

The spelling of 36121944 in words is "thirty-six million, one hundred twenty-one thousand, nine hundred forty-four".