40002164 has 12 divisors (see below), whose sum is σ = 70658784. Its totient is φ = 19813944.

The previous prime is 40002133. The next prime is 40002191. The reversal of 40002164 is 46120004.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 46304 + ... + 47159.

It is an arithmetic number, because the mean of its divisors is an integer number (5888232).

Almost surely, 2^40002164 is an apocalyptic number.

It is an amenable number.

40002164 is a deficient number, since it is larger than the sum of its proper divisors (30656620).

40002164 is a wasteful number, since it uses less digits than its factorization.

40002164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93574 (or 93572 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40002164 is about 6324.7263972444. The cubic root of 40002164 is about 342.0013565374.

Adding to 40002164 its reverse (46120004), we get a palindrome (86122168).

The spelling of 40002164 in words is "forty million, two thousand, one hundred sixty-four".