20512076 has 24 divisors (see below), whose sum is σ = 38789184. Its totient is φ = 9434880.

The previous prime is 20512073. The next prime is 20512087. The reversal of 20512076 is 67021502.

It is not an unprimeable number, because it can be changed into a prime (20512073) 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, 22061 + ... + 22971.

It is an arithmetic number, because the mean of its divisors is an integer number (1616216).

Almost surely, 2^20512076 is an apocalyptic number.

20512076 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20512076 is a deficient number, since it is larger than the sum of its proper divisors (18277108).

20512076 is a wasteful number, since it uses less digits than its factorization.

20512076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 20512076 is about 4529.0259438427. The cubic root of 20512076 is about 273.7389133907.

Adding to 20512076 its reverse (67021502), we get a palindrome (87533578).

The spelling of 20512076 in words is "twenty million, five hundred twelve thousand, seventy-six".