3261800 has 48 divisors (see below), whose sum is σ = 7767360. Its totient is φ = 1273280.

The previous prime is 3261799. The next prime is 3261803. The reversal of 3261800 is 81623.

3261800 = T₁₂₉ + T₁₃₀ + ... + T₂₇₈.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9227 + ... + 9573.

It is an arithmetic number, because the mean of its divisors is an integer number (161820).

Almost surely, 2^3261800 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3261800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3883680).

3261800 is an abundant number, since it is smaller than the sum of its proper divisors (4505560).

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

3261800 is a wasteful number, since it uses less digits than its factorization.

3261800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 3261800 is about 1806.0454036375. The cubic root of 3261800 is about 148.3038558884.

The spelling of 3261800 in words is "three million, two hundred sixty-one thousand, eight hundred".