36261138 has 32 divisors (see below), whose sum is σ = 74737152. Its totient is φ = 11721600.

The previous prime is 36261131. The next prime is 36261157. The reversal of 36261138 is 83116263.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (36261131) 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, 54528 + ... + 55188.

It is an arithmetic number, because the mean of its divisors is an integer number (2335536).

Almost surely, 2^36261138 is an apocalyptic number.

36261138 is an abundant number, since it is smaller than the sum of its proper divisors (38476014).

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

36261138 is a wasteful number, since it uses less digits than its factorization.

36261138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930.

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

The square root of 36261138 is about 6021.7221789119. The cubic root of 36261138 is about 330.9891898393.

The spelling of 36261138 in words is "thirty-six million, two hundred sixty-one thousand, one hundred thirty-eight".