20001464 has 16 divisors (see below), whose sum is σ = 42860400. Its totient is φ = 8572032.

The previous prime is 20001451. The next prime is 20001491. The reversal of 20001464 is 46410002.

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, 178529 + ... + 178640.

It is an arithmetic number, because the mean of its divisors is an integer number (2678775).

Almost surely, 2^20001464 is an apocalyptic number.

It is an amenable number.

20001464 is an abundant number, since it is smaller than the sum of its proper divisors (22858936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20001464 is a wasteful number, since it uses less digits than its factorization.

20001464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357182 (or 357178 counting only the distinct ones).

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

The square root of 20001464 is about 4472.2996321803. The cubic root of 20001464 is about 271.4483846769.

Adding to 20001464 its reverse (46410002), we get a palindrome (66411466).

The spelling of 20001464 in words is "twenty million, one thousand, four hundred sixty-four".