201640084 has 24 divisors (see below), whose sum is σ = 381486560. Its totient is φ = 92930976.

The previous prime is 201640079. The next prime is 201640123. The reversal of 201640084 is 480046102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33042 + ... + 38665.

Almost surely, 2^201640084 is an apocalyptic number.

It is an amenable number.

201640084 is a deficient number, since it is larger than the sum of its proper divisors (179846476).

201640084 is a wasteful number, since it uses less digits than its factorization.

201640084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71767 (or 71765 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 201640084 is about 14200.0029577462. The cubic root of 201640084 is about 586.3977427641.

Adding to 201640084 its reverse (480046102), we get a palindrome (681686186).

The spelling of 201640084 in words is "two hundred one million, six hundred forty thousand, eighty-four".