20475938 has 8 divisors (see below), whose sum is σ = 35101632. Its totient is φ = 8775396.

The previous prime is 20475919. The next prime is 20475941. The reversal of 20475938 is 83957402.

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, 731270 + ... + 731297.

It is an arithmetic number, because the mean of its divisors is an integer number (4387704).

Almost surely, 2^20475938 is an apocalyptic number.

20475938 is a deficient number, since it is larger than the sum of its proper divisors (14625694).

20475938 is a wasteful number, since it uses less digits than its factorization.

20475938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462576.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 20475938 is about 4525.0345855032. The cubic root of 20475938 is about 273.5780619329.

The spelling of 20475938 in words is "twenty million, four hundred seventy-five thousand, nine hundred thirty-eight".