36143872 has 36 divisors (see below), whose sum is σ = 73400040. Its totient is φ = 17758208.

The previous prime is 36143869. The next prime is 36143873. The reversal of 36143872 is 27834163.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (36143873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13908 + ... + 16300.

It is an arithmetic number, because the mean of its divisors is an integer number (2038890).

Almost surely, 2^36143872 is an apocalyptic number.

36143872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36143872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36700020).

36143872 is an abundant number, since it is smaller than the sum of its proper divisors (37256168).

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

36143872 is an equidigital number, since it uses as much as digits as its factorization.

36143872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468 (or 2454 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 36143872 is about 6011.9773785336. The cubic root of 36143872 is about 330.6320058478.

The spelling of 36143872 in words is "thirty-six million, one hundred forty-three thousand, eight hundred seventy-two".