36005642 has 16 divisors (see below), whose sum is σ = 54767880. Its totient is φ = 17751552.

The previous prime is 36005639. The next prime is 36005653. The reversal of 36005642 is 24650063.

It can be written as a sum of positive squares in 4 ways, for example, as 13830961 + 22174681 = 3719^2 + 4709^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70484 + ... + 70992.

Almost surely, 2^36005642 is an apocalyptic number.

36005642 is a deficient number, since it is larger than the sum of its proper divisors (18762238).

36005642 is a wasteful number, since it uses less digits than its factorization.

36005642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 36005642 is about 6000.4701482467. The cubic root of 36005642 is about 330.2099735009.

The spelling of 36005642 in words is "thirty-six million, five thousand, six hundred forty-two".