20534016 has 36 divisors (see below), whose sum is σ = 54652472. Its totient is φ = 6844416.

The previous prime is 20533999. The next prime is 20534029. The reversal of 20534016 is 61043502.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20533983 and 20534001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12601 + ... + 14136.

Almost surely, 2^20534016 is an apocalyptic number.

It is an amenable number.

20534016 is an abundant number, since it is smaller than the sum of its proper divisors (34118456).

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

20534016 is an equidigital number, since it uses as much as digits as its factorization.

20534016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26756 (or 26742 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 20534016 is about 4531.4474508704. The cubic root of 20534016 is about 273.8364769223.

Adding to 20534016 its reverse (61043502), we get a palindrome (81577518).

The spelling of 20534016 in words is "twenty million, five hundred thirty-four thousand, sixteen".