20343006 has 24 divisors (see below), whose sum is σ = 45499584. Its totient is φ = 6562080.

The previous prime is 20342981. The next prime is 20343019. The reversal of 20343006 is 60034302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 20343006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17671 + ... + 18786.

It is an arithmetic number, because the mean of its divisors is an integer number (1895816).

Almost surely, 2^20343006 is an apocalyptic number.

20343006 is an abundant number, since it is smaller than the sum of its proper divisors (25156578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20343006 is a wasteful number, since it uses less digits than its factorization.

20343006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36496 (or 36493 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 20343006 is about 4510.3221614426. The cubic root of 20343006 is about 272.9847433409.

Adding to 20343006 its reverse (60034302), we get a palindrome (80377308).

The spelling of 20343006 in words is "twenty million, three hundred forty-three thousand, six".