201624643 has 16 divisors (see below), whose sum is σ = 223171200. Its totient is φ = 180636480.

The previous prime is 201624623. The next prime is 201624649. The reversal of 201624643 is 346426102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201624643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201624649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248823 + ... + 249631.

It is an arithmetic number, because the mean of its divisors is an integer number (13948200).

Almost surely, 2^201624643 is an apocalyptic number.

201624643 is a deficient number, since it is larger than the sum of its proper divisors (21546557).

201624643 is a wasteful number, since it uses less digits than its factorization.

201624643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 201624643 is about 14199.4592502672. The cubic root of 201624643 is about 586.3827741817.

The spelling of 201624643 in words is "two hundred one million, six hundred twenty-four thousand, six hundred forty-three".