20034320 has 40 divisors (see below), whose sum is σ = 46830336. Its totient is φ = 7970688.

The previous prime is 20034317. The next prime is 20034323. The reversal of 20034320 is 2343002.

It is an interprime number because it is at equal distance from previous prime (20034317) and next prime (20034323).

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 20034295 and 20034304.

It is not an unprimeable number, because it can be changed into a prime (20034323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17279 + ... + 18401.

Almost surely, 2^20034320 is an apocalyptic number.

20034320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20034320 is an abundant number, since it is smaller than the sum of its proper divisors (26796016).

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

20034320 is a wasteful number, since it uses less digits than its factorization.

20034320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 1353 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 20034320 is about 4475.9714029471. The cubic root of 20034320 is about 271.5969376203.

Adding to 20034320 its reverse (2343002), we get a palindrome (22377322).

The spelling of 20034320 in words is "twenty million, thirty-four thousand, three hundred twenty".