36538438 has 4 divisors (see below), whose sum is σ = 54807660. Its totient is φ = 18269218.

The previous prime is 36538427. The next prime is 36538441. The reversal of 36538438 is 83483563.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 36538438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9134608 + ... + 9134611.

It is an arithmetic number, because the mean of its divisors is an integer number (13701915).

Almost surely, 2^36538438 is an apocalyptic number.

36538438 is a deficient number, since it is larger than the sum of its proper divisors (18269222).

36538438 is a wasteful number, since it uses less digits than its factorization.

36538438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18269221.

The product of its digits is 207360, while the sum is 40.

The square root of 36538438 is about 6044.7033012382. The cubic root of 36538438 is about 331.8307733395.

The spelling of 36538438 in words is "thirty-six million, five hundred thirty-eight thousand, four hundred thirty-eight".