3205426800 has 120 divisors (see below), whose sum is σ = 10392084864. Its totient is φ = 844455680.

The previous prime is 3205426723. The next prime is 3205426843. The reversal of 3205426800 is 86245023.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83509 + ... + 115691.

Almost surely, 2^3205426800 is an apocalyptic number.

3205426800 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3205426800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5196042432).

3205426800 is an abundant number, since it is smaller than the sum of its proper divisors (7186658064).

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

3205426800 is a wasteful number, since it uses less digits than its factorization.

3205426800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32287 (or 32276 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 3205426800 is about 56616.4887643167. The cubic root of 3205426800 is about 1474.4451499219.

The spelling of 3205426800 in words is "three billion, two hundred five million, four hundred twenty-six thousand, eight hundred".