20134648 has 16 divisors (see below), whose sum is σ = 38178000. Its totient is φ = 9953856.

The previous prime is 20134643. The next prime is 20134663. The reversal of 20134648 is 84643102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13428 + ... + 14851.

It is an arithmetic number, because the mean of its divisors is an integer number (2386125).

Almost surely, 2^20134648 is an apocalyptic number.

It is an amenable number.

20134648 is a deficient number, since it is larger than the sum of its proper divisors (18043352).

20134648 is a wasteful number, since it uses less digits than its factorization.

20134648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28374 (or 28370 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 20134648 is about 4487.1648064229. The cubic root of 20134648 is about 272.0495512378.

The spelling of 20134648 in words is "twenty million, one hundred thirty-four thousand, six hundred forty-eight".