36646401 has 32 divisors (see below), whose sum is σ = 55728000. Its totient is φ = 21217280.

The previous prime is 36646397. The next prime is 36646439. The reversal of 36646401 is 10464663.

It is a cyclic number.

It is not a de Polignac number, because 36646401 - 2² = 36646397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36646451) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 142465 + ... + 142721.

It is an arithmetic number, because the mean of its divisors is an integer number (1741500).

Almost surely, 2^36646401 is an apocalyptic number.

It is an amenable number.

36646401 is a deficient number, since it is larger than the sum of its proper divisors (19081599).

36646401 is a wasteful number, since it uses less digits than its factorization.

36646401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 36646401 is about 6053.6270945607. The cubic root of 36646401 is about 332.1572808034.

The spelling of 36646401 in words is "thirty-six million, six hundred forty-six thousand, four hundred one".