36643642 has 8 divisors (see below), whose sum is σ = 62817696. Its totient is φ = 15704412.

The previous prime is 36643639. The next prime is 36643657. The reversal of 36643642 is 24634663.

36643642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 36643598 and 36643607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1308688 + ... + 1308715.

It is an arithmetic number, because the mean of its divisors is an integer number (7852212).

Almost surely, 2^36643642 is an apocalyptic number.

36643642 is a deficient number, since it is larger than the sum of its proper divisors (26174054).

36643642 is a wasteful number, since it uses less digits than its factorization.

36643642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617412.

The product of its digits is 62208, while the sum is 34.

The square root of 36643642 is about 6053.3992103611. The cubic root of 36643642 is about 332.1489448785.

The spelling of 36643642 in words is "thirty-six million, six hundred forty-three thousand, six hundred forty-two".