3204390 has 32 divisors (see below), whose sum is σ = 8789760. Its totient is φ = 732384.

The previous prime is 3204389. The next prime is 3204401. The reversal of 3204390 is 934023.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7420 + ... + 7839.

It is an arithmetic number, because the mean of its divisors is an integer number (274680).

Almost surely, 2^3204390 is an apocalyptic number.

3204390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3204390 is an abundant number, since it is smaller than the sum of its proper divisors (5585370).

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

3204390 is a wasteful number, since it uses less digits than its factorization.

3204390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15276.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 3204390 is about 1790.0810037537. The cubic root of 3204390 is about 147.4286162297.

The spelling of 3204390 in words is "three million, two hundred four thousand, three hundred ninety".