3200000 has 66 divisors (see below), whose sum is σ = 7995582. Its totient is φ = 1280000.

The previous prime is 3199997. The next prime is 3200003. The reversal of 3200000 is 23.

It is a happy number.

It is a perfect power (a 5-th power), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (3199997) and next prime (3200003).

It can be written as a sum of positive squares in 3 ways, for example, as 1478656 + 1721344 = 1216^2 + 1312^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3200003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 639998 + ... + 640002.

Almost surely, 2^3200000 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 3200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3997791).

3200000 is an abundant number, since it is smaller than the sum of its proper divisors (4795582).

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

3200000 is an frugal number, since it uses more digits than its factorization.

3200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45 (or 7 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 5.

The square root of 3200000 is about 1788.8543819998. The cubic root of 3200000 is about 147.3612599456.

Adding to 3200000 its reverse (23), we get a palindrome (3200023).

The spelling of 3200000 in words is "three million, two hundred thousand".