20529696 has 48 divisors (see below), whose sum is σ = 58792608. Its totient is φ = 6220800.

The previous prime is 20529673. The next prime is 20529749. The reversal of 20529696 is 69692502.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×20529696³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8665 + ... + 10776.

It is an arithmetic number, because the mean of its divisors is an integer number (1224846).

Almost surely, 2^20529696 is an apocalyptic number.

It is an amenable number.

20529696 is an abundant number, since it is smaller than the sum of its proper divisors (38262912).

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

20529696 is a wasteful number, since it uses less digits than its factorization.

20529696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19465 (or 19457 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 20529696 is about 4530.9707569129. The cubic root of 20529696 is about 273.8172720974.

The spelling of 20529696 in words is "twenty million, five hundred twenty-nine thousand, six hundred ninety-six".