20161464 has 16 divisors (see below), whose sum is σ = 50403720. Its totient is φ = 6720480.

The previous prime is 20161457. The next prime is 20161483. The reversal of 20161464 is 46416102.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 840061 = 20161464 / (2 + 0 + 1 + 6 + 1 + 4 + 6 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420007 + ... + 420054.

Almost surely, 2^20161464 is an apocalyptic number.

20161464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20161464 is an abundant number, since it is smaller than the sum of its proper divisors (30242256).

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

20161464 is a wasteful number, since it uses less digits than its factorization.

20161464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840070 (or 840066 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 20161464 is about 4490.1518905266. The cubic root of 20161464 is about 272.1702725679.

Adding to 20161464 its reverse (46416102), we get a palindrome (66577566).

The spelling of 20161464 in words is "twenty million, one hundred sixty-one thousand, four hundred sixty-four".