20514836 has 12 divisors (see below), whose sum is σ = 35933940. Its totient is φ = 10248000.

The previous prime is 20514833. The next prime is 20514841. The reversal of 20514836 is 63841502.

It can be written as a sum of positive squares in 2 ways, for example, as 7236100 + 13278736 = 2690^2 + 3644^2 .

It is a super-2 number, since 2×20514836² = 841716992213792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20514799 and 20514808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5336 + ... + 8336.

It is an arithmetic number, because the mean of its divisors is an integer number (2994495).

Almost surely, 2^20514836 is an apocalyptic number.

It is an amenable number.

20514836 is a deficient number, since it is larger than the sum of its proper divisors (15419104).

20514836 is a wasteful number, since it uses less digits than its factorization.

20514836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4714 (or 4712 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 20514836 is about 4529.3306348731. The cubic root of 20514836 is about 273.7511904760.

The spelling of 20514836 in words is "twenty million, five hundred fourteen thousand, eight hundred thirty-six".