3230840 has 48 divisors (see below), whose sum is σ = 7597800. Its totient is φ = 1236096.

The previous prime is 3230831. The next prime is 3230849. The reversal of 3230840 is 480323.

3230840 = T₃₀₁ + T₃₀₂ + ... + T₃₅₉.

It is an interprime number because it is at equal distance from previous prime (3230831) and next prime (3230849).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3230849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54731 + ... + 54789.

Almost surely, 2^3230840 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 3230840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3798900).

3230840 is an abundant number, since it is smaller than the sum of its proper divisors (4366960).

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

3230840 is a wasteful number, since it uses less digits than its factorization.

3230840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3230840 is about 1797.4537546207. The cubic root of 3230840 is about 147.8331452926.

The spelling of 3230840 in words is "three million, two hundred thirty thousand, eight hundred forty".