3204990 has 48 divisors (see below), whose sum is σ = 8424000. Its totient is φ = 845376.

The previous prime is 3204983. The next prime is 3204991. The reversal of 3204990 is 994023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3204991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13291 + ... + 13529.

It is an arithmetic number, because the mean of its divisors is an integer number (175500).

Almost surely, 2^3204990 is an apocalyptic number.

3204990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3204990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4212000).

3204990 is an abundant number, since it is smaller than the sum of its proper divisors (5219010).

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

3204990 is a wasteful number, since it uses less digits than its factorization.

3204990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 3204990 is about 1790.2485860908. The cubic root of 3204990 is about 147.4378173204.

The spelling of 3204990 in words is "three million, two hundred four thousand, nine hundred ninety".