20529368 has 8 divisors (see below), whose sum is σ = 38492580. Its totient is φ = 10264680.

The previous prime is 20529337. The next prime is 20529373. The reversal of 20529368 is 86392502.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283078 + ... + 1283093.

Almost surely, 2^20529368 is an apocalyptic number.

It is an amenable number.

20529368 is a deficient number, since it is larger than the sum of its proper divisors (17963212).

20529368 is a wasteful number, since it uses less digits than its factorization.

20529368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566177 (or 2566173 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 20529368 is about 4530.9345614343. The cubic root of 20529368 is about 273.8158138432.

The spelling of 20529368 in words is "twenty million, five hundred twenty-nine thousand, three hundred sixty-eight".