20514828 has 24 divisors (see below), whose sum is σ = 47941488. Its totient is φ = 6827776.

The previous prime is 20514787. The next prime is 20514829. The reversal of 20514828 is 82841502.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20514795 and 20514804.

It is not an unprimeable number, because it can be changed into a prime (20514829) 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, 13600 + ... + 15032.

It is an arithmetic number, because the mean of its divisors is an integer number (1997562).

Almost surely, 2^20514828 is an apocalyptic number.

It is an amenable number.

20514828 is an abundant number, since it is smaller than the sum of its proper divisors (27426660).

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

20514828 is a wasteful number, since it uses less digits than its factorization.

20514828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633 (or 2631 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 20514828 is about 4529.3297517403. The cubic root of 20514828 is about 273.7511548918.

The spelling of 20514828 in words is "twenty million, five hundred fourteen thousand, eight hundred twenty-eight".