20130464 has 24 divisors (see below), whose sum is σ = 40138560. Its totient is φ = 9936576.

The previous prime is 20130457. The next prime is 20130469. The reversal of 20130464 is 46403102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20130469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1454 + ... + 6509.

It is an arithmetic number, because the mean of its divisors is an integer number (1672440).

Almost surely, 2^20130464 is an apocalyptic number.

It is an amenable number.

20130464 is a deficient number, since it is larger than the sum of its proper divisors (20008096).

20130464 is an equidigital number, since it uses as much as digits as its factorization.

20130464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8052 (or 8044 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20130464 is about 4486.6985635320. The cubic root of 20130464 is about 272.0307058761.

Adding to 20130464 its reverse (46403102), we get a palindrome (66533566).

The spelling of 20130464 in words is "twenty million, one hundred thirty thousand, four hundred sixty-four".