20534008 has 16 divisors (see below), whose sum is σ = 42001560. Its totient is φ = 9333600.

The previous prime is 20533999. The next prime is 20534029. The reversal of 20534008 is 80043502.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a self number, because there is not a number n which added to its sum of digits gives 20534008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116583 + ... + 116758.

Almost surely, 2^20534008 is an apocalyptic number.

It is an amenable number.

20534008 is an abundant number, since it is smaller than the sum of its proper divisors (21467552).

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

20534008 is a wasteful number, since it uses less digits than its factorization.

20534008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233358 (or 233354 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20534008 is about 4531.4465681502. The cubic root of 20534008 is about 273.8364413603.

The spelling of 20534008 in words is "twenty million, five hundred thirty-four thousand, eight".