36400 has 60 divisors (see below), whose sum is σ = 107632. Its totient is φ = 11520.
The previous prime is 36389. The next prime is 36433. The reversal of 36400 is 463.
36400 = T65 + T66 + ... + T78.
36400 is nontrivially palindromic in base 15.
It is a Harshad number since it is a multiple of its sum of digits (13).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2794 + ... + 2806.
236400 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 36400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53816).
36400 is an abundant number, since it is smaller than the sum of its proper divisors (71232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
36400 is a wasteful number, since it uses less digits than its factorization.
36400 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38 (or 27 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 13.
The square root of 36400 is about 190.7878402834. The cubic root of 36400 is about 33.1411159269.
Adding to 36400 its reverse (463), we get a palindrome (36863).
Subtracting from 36400 its reverse (463), we obtain a cube (35937 = 333).
It can be divided in two parts, 36 and 400, that multiplied together give a square (14400 = 1202).
The spelling of 36400 in words is "thirty-six thousand, four hundred".
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