3253520040 has 64 divisors (see below), whose sum is σ = 9767684160. Its totient is φ = 866972160.

The previous prime is 3253520021. The next prime is 3253520047. The reversal of 3253520040 is 400253523.

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

It is not an unprimeable number, because it can be changed into a prime (3253520047) 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, 168567 + ... + 186873.

It is an arithmetic number, because the mean of its divisors is an integer number (152620065).

Almost surely, 2^3253520040 is an apocalyptic number.

3253520040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3253520040 is an abundant number, since it is smaller than the sum of its proper divisors (6514164120).

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

3253520040 is a wasteful number, since it uses less digits than its factorization.

3253520040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19802 (or 19798 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 3253520040 is about 57039.6356930863. The cubic root of 3253520040 is about 1481.7826158482.

Adding to 3253520040 its reverse (400253523), we get a palindrome (3653773563).

The spelling of 3253520040 in words is "three billion, two hundred fifty-three million, five hundred twenty thousand, forty".