20608738 has 8 divisors (see below), whose sum is σ = 31910400. Its totient is φ = 9971940.

The previous prime is 20608729. The next prime is 20608771. The reversal of 20608738 is 83780602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166138 + ... + 166261.

It is an arithmetic number, because the mean of its divisors is an integer number (3988800).

Almost surely, 2^20608738 is an apocalyptic number.

20608738 is a deficient number, since it is larger than the sum of its proper divisors (11301662).

20608738 is a wasteful number, since it uses less digits than its factorization.

20608738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332432.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 20608738 is about 4539.6847908197. The cubic root of 20608738 is about 274.1682327720.

The spelling of 20608738 in words is "twenty million, six hundred eight thousand, seven hundred thirty-eight".