20032516 has 24 divisors (see below), whose sum is σ = 40824000. Its totient is φ = 8422752.

The previous prime is 20032513. The next prime is 20032543. The reversal of 20032516 is 61523002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20032493 and 20032502.

It is not an unprimeable number, because it can be changed into a prime (20032513) 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, 5266 + ... + 8233.

It is an arithmetic number, because the mean of its divisors is an integer number (1701000).

Almost surely, 2^20032516 is an apocalyptic number.

It is an amenable number.

20032516 is an abundant number, since it is smaller than the sum of its proper divisors (20791484).

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

20032516 is a wasteful number, since it uses less digits than its factorization.

20032516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13563 (or 13561 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 20032516 is about 4475.7698779093. The cubic root of 20032516 is about 271.5887853499.

Adding to 20032516 its reverse (61523002), we get a palindrome (81555518).

The spelling of 20032516 in words is "twenty million, thirty-two thousand, five hundred sixteen".