3253221240 has 64 divisors (see below), whose sum is σ = 9766150560. Its totient is φ = 866949120.

The previous prime is 3253221233. The next prime is 3253221241. The reversal of 3253221240 is 421223523.

3253221240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3253221240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3253221241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190660 + ... + 207020.

Almost surely, 2^3253221240 is an apocalyptic number.

3253221240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3253221240 is an abundant number, since it is smaller than the sum of its proper divisors (6512929320).

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

3253221240 is a wasteful number, since it uses less digits than its factorization.

3253221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18032 (or 18028 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 3253221240 is about 57037.0164016317. The cubic root of 3253221240 is about 1481.7372526524.

Adding to 3253221240 its reverse (421223523), we get a palindrome (3674444763).

The spelling of 3253221240 in words is "three billion, two hundred fifty-three million, two hundred twenty-one thousand, two hundred forty".