20514432 has 64 divisors (see below), whose sum is σ = 55863360. Its totient is φ = 6666240.

The previous prime is 20514421. The next prime is 20514443. The reversal of 20514432 is 23441502.

It is an interprime number because it is at equal distance from previous prime (20514421) and next prime (20514443).

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 20514399 and 20514408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15093 + ... + 16395.

It is an arithmetic number, because the mean of its divisors is an integer number (872865).

Almost surely, 2^20514432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20514432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27931680).

20514432 is an abundant number, since it is smaller than the sum of its proper divisors (35348928).

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

20514432 is a wasteful number, since it uses less digits than its factorization.

20514432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 20514432 is about 4529.2860364521. The cubic root of 20514432 is about 273.7493934642.

Adding to 20514432 its reverse (23441502), we get a palindrome (43955934).

The spelling of 20514432 in words is "twenty million, five hundred fourteen thousand, four hundred thirty-two".