20343004 has 24 divisors (see below), whose sum is σ = 39167856. Its totient is φ = 9244400.

The previous prime is 20342981. The next prime is 20343019. The reversal of 20343004 is 40034302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3414 + ... + 7234.

It is an arithmetic number, because the mean of its divisors is an integer number (1631994).

Almost surely, 2^20343004 is an apocalyptic number.

It is an amenable number.

20343004 is a deficient number, since it is larger than the sum of its proper divisors (18824852).

20343004 is a wasteful number, since it uses less digits than its factorization.

20343004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3858 (or 3834 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 20343004 is about 4510.3219397289. The cubic root of 20343004 is about 272.9847343949.

Adding to 20343004 its reverse (40034302), we get a palindrome (60377306).

The spelling of 20343004 in words is "twenty million, three hundred forty-three thousand, four".