20514484 has 12 divisors (see below), whose sum is σ = 37138500. Its totient is φ = 9903488.

The previous prime is 20514457. The next prime is 20514497. The reversal of 20514484 is 48441502.

It can be written as a sum of positive squares in 2 ways, for example, as 15038884 + 5475600 = 3878^2 + 2340^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88309 + ... + 88540.

It is an arithmetic number, because the mean of its divisors is an integer number (3094875).

Almost surely, 2^20514484 is an apocalyptic number.

It is an amenable number.

20514484 is a deficient number, since it is larger than the sum of its proper divisors (16624016).

20514484 is a wasteful number, since it uses less digits than its factorization.

20514484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176882 (or 176880 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 20514484 is about 4529.2917768675. The cubic root of 20514484 is about 273.7496247641.

Adding to 20514484 its reverse (48441502), we get a palindrome (68955986).

The spelling of 20514484 in words is "twenty million, five hundred fourteen thousand, four hundred eighty-four".