36642838 has 4 divisors (see below), whose sum is σ = 54964260. Its totient is φ = 18321418.

The previous prime is 36642833. The next prime is 36642847. The reversal of 36642838 is 83824663.

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

It is a self number, because there is not a number n which added to its sum of digits gives 36642838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36642833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9160708 + ... + 9160711.

It is an arithmetic number, because the mean of its divisors is an integer number (13741065).

Almost surely, 2^36642838 is an apocalyptic number.

36642838 is a deficient number, since it is larger than the sum of its proper divisors (18321422).

36642838 is a wasteful number, since it uses less digits than its factorization.

36642838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18321421.

The product of its digits is 165888, while the sum is 40.

The square root of 36642838 is about 6053.3328010279. The cubic root of 36642838 is about 332.1465156285.

The spelling of 36642838 in words is "thirty-six million, six hundred forty-two thousand, eight hundred thirty-eight".