20343800 has 24 divisors (see below), whose sum is σ = 47299800. Its totient is φ = 8137440.

The previous prime is 20343797. The next prime is 20343833. The reversal of 20343800 is 834302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50660 + ... + 51059.

It is an arithmetic number, because the mean of its divisors is an integer number (1970825).

Almost surely, 2^20343800 is an apocalyptic number.

20343800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20343800 is an abundant number, since it is smaller than the sum of its proper divisors (26956000).

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

20343800 is a wasteful number, since it uses less digits than its factorization.

20343800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101735 (or 101726 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20343800 is about 4510.4101809037. The cubic root of 20343800 is about 272.9882948820.

The spelling of 20343800 in words is "twenty million, three hundred forty-three thousand, eight hundred".