3212520240 has 80 divisors (see below), whose sum is σ = 10302242400. Its totient is φ = 827129856.

The previous prime is 3212520197. The next prime is 3212520253. The reversal of 3212520240 is 420252123.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223825 + ... + 237744.

It is an arithmetic number, because the mean of its divisors is an integer number (128778030).

Almost surely, 2^3212520240 is an apocalyptic number.

3212520240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3212520240 is an abundant number, since it is smaller than the sum of its proper divisors (7089722160).

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

3212520240 is a wasteful number, since it uses less digits than its factorization.

3212520240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461614 (or 461608 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 3212520240 is about 56679.0987931177. The cubic root of 3212520240 is about 1475.5319716712.

Adding to 3212520240 its reverse (420252123), we get a palindrome (3632772363).

The spelling of 3212520240 in words is "three billion, two hundred twelve million, five hundred twenty thousand, two hundred forty".