20348506 has 8 divisors (see below), whose sum is σ = 32129280. Its totient is φ = 9638748.

The previous prime is 20348501. The next prime is 20348539. The reversal of 20348506 is 60584302.

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

It is not an unprimeable number, because it can be changed into a prime (20348501) 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, 267706 + ... + 267781.

It is an arithmetic number, because the mean of its divisors is an integer number (4016160).

Almost surely, 2^20348506 is an apocalyptic number.

20348506 is a deficient number, since it is larger than the sum of its proper divisors (11780774).

20348506 is a wasteful number, since it uses less digits than its factorization.

20348506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535508.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20348506 is about 4510.9318327813. The cubic root of 20348506 is about 273.0093427995.

The spelling of 20348506 in words is "twenty million, three hundred forty-eight thousand, five hundred six".