3234220440 has 256 divisors, whose sum is σ = 11112837120. Its totient is φ = 745367040.

The previous prime is 3234220439. The next prime is 3234220441. The reversal of 3234220440 is 440224323.

It is an interprime number because it is at equal distance from previous prime (3234220439) and next prime (3234220441).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3234220440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3234220441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9320347 + ... + 9320693.

It is an arithmetic number, because the mean of its divisors is an integer number (43409520).

Almost surely, 2^3234220440 is an apocalyptic number.

3234220440 is a gapful number since it is divisible by the number (30) 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 3234220440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5556418560).

3234220440 is an abundant number, since it is smaller than the sum of its proper divisors (7878616680).

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

3234220440 is a wasteful number, since it uses less digits than its factorization.

3234220440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 3234220440 is about 56870.2069628729. The cubic root of 3234220440 is about 1478.8468677873.

Adding to 3234220440 its reverse (440224323), we get a palindrome (3674444763).

The spelling of 3234220440 in words is "three billion, two hundred thirty-four million, two hundred twenty thousand, four hundred forty".