3231904 has 48 divisors (see below), whose sum is σ = 7271208. Its totient is φ = 1400832.

The previous prime is 3231883. The next prime is 3231931. The reversal of 3231904 is 4091323.

It can be written as a sum of positive squares in 4 ways, for example, as 3055504 + 176400 = 1748^2 + 420^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6844 + ... + 7300.

Almost surely, 2^3231904 is an apocalyptic number.

3231904 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3231904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3635604).

3231904 is an abundant number, since it is smaller than the sum of its proper divisors (4039304).

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

3231904 is a wasteful number, since it uses less digits than its factorization.

3231904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3231904 is about 1797.7497044917. The cubic root of 3231904 is about 147.8493719501.

The spelling of 3231904 in words is "three million, two hundred thirty-one thousand, nine hundred four".