20348902 has 8 divisors (see below), whose sum is σ = 34883856. Its totient is φ = 8720952.

The previous prime is 20348897. The next prime is 20348903. The reversal of 20348902 is 20984302.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20348903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726733 + ... + 726760.

It is an arithmetic number, because the mean of its divisors is an integer number (4360482).

Almost surely, 2^20348902 is an apocalyptic number.

20348902 is a deficient number, since it is larger than the sum of its proper divisors (14534954).

20348902 is a wasteful number, since it uses less digits than its factorization.

20348902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453502.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20348902 is about 4510.9757259378. The cubic root of 20348902 is about 273.0111137894.

The spelling of 20348902 in words is "twenty million, three hundred forty-eight thousand, nine hundred two".