3200904 has 128 divisors (see below), whose sum is σ = 10656000. Its totient is φ = 870912.

The previous prime is 3200891. The next prime is 3200909. The reversal of 3200904 is 4090023.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3200909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43812 + ... + 43884.

It is an arithmetic number, because the mean of its divisors is an integer number (83250).

Almost surely, 2^3200904 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 3200904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5328000).

3200904 is an abundant number, since it is smaller than the sum of its proper divisors (7455096).

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

3200904 is a wasteful number, since it uses less digits than its factorization.

3200904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3200904 is about 1789.1070398386. The cubic root of 3200904 is about 147.3751351578.

Adding to 3200904 its reverse (4090023), we get a palindrome (7290927).

The spelling of 3200904 in words is "three million, two hundred thousand, nine hundred four".