20135468 has 12 divisors (see below), whose sum is σ = 35662200. Its totient is φ = 9946272.

The previous prime is 20135447. The next prime is 20135501. The reversal of 20135468 is 86453102.

It is a self number, because there is not a number n which added to its sum of digits gives 20135468.

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, 29993 + ... + 30656.

It is an arithmetic number, because the mean of its divisors is an integer number (2971850).

Almost surely, 2^20135468 is an apocalyptic number.

It is an amenable number.

20135468 is a deficient number, since it is larger than the sum of its proper divisors (15526732).

20135468 is a wasteful number, since it uses less digits than its factorization.

20135468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60736 (or 60734 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 20135468 is about 4487.2561772201. The cubic root of 20135468 is about 272.0532443345.

The spelling of 20135468 in words is "twenty million, one hundred thirty-five thousand, four hundred sixty-eight".