3231145424 has 80 divisors (see below), whose sum is σ = 6934712400. Its totient is φ = 1449197568.

The previous prime is 3231145397. The next prime is 3231145433. The reversal of 3231145424 is 4245411323.

It can be written as a sum of positive squares in 8 ways, for example, as 241243024 + 2989902400 = 15532^2 + 54680^2 .

It is a super-2 number, since 2×3231145424² = 20880601502072279552, which contains 22 as substring.

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, 1200272 + ... + 1202960.

It is an arithmetic number, because the mean of its divisors is an integer number (86683905).

Almost surely, 2^3231145424 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 3231145424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3467356200).

3231145424 is an abundant number, since it is smaller than the sum of its proper divisors (3703566976).

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

3231145424 is a wasteful number, since it uses less digits than its factorization.

3231145424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872 (or 2866 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 3231145424 is about 56843.1651476235. The cubic root of 3231145424 is about 1478.3780356183.

Adding to 3231145424 its reverse (4245411323), we get a palindrome (7476556747).

The spelling of 3231145424 in words is "three billion, two hundred thirty-one million, one hundred forty-five thousand, four hundred twenty-four".