20529484 has 12 divisors (see below), whose sum is σ = 35999208. Its totient is φ = 10244000.

The previous prime is 20529473. The next prime is 20529499. The reversal of 20529484 is 48492502.

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, 2842 + ... + 7009.

It is an arithmetic number, because the mean of its divisors is an integer number (2999934).

Almost surely, 2^20529484 is an apocalyptic number.

It is an amenable number.

20529484 is a deficient number, since it is larger than the sum of its proper divisors (15469724).

20529484 is a wasteful number, since it uses less digits than its factorization.

20529484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10376 (or 10374 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 20529484 is about 4530.9473623074. The cubic root of 20529484 is about 273.8163295690.

The spelling of 20529484 in words is "twenty million, five hundred twenty-nine thousand, four hundred eighty-four".