3213452520 has 128 divisors (see below), whose sum is σ = 11275344000. Its totient is φ = 811814400.

The previous prime is 3213452519. The next prime is 3213452527. The reversal of 3213452520 is 252543123.

It is a happy number.

3213452520 is a `hidden beast` number, since 3 + 2 + 134 + 5 + 2 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3213452527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57781 + ... + 98820.

It is an arithmetic number, because the mean of its divisors is an integer number (88088625).

Almost surely, 2^3213452520 is an apocalyptic number.

3213452520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3213452520 is an abundant number, since it is smaller than the sum of its proper divisors (8061891480).

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

3213452520 is a wasteful number, since it uses less digits than its factorization.

3213452520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156640 (or 156630 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 3213452520 is about 56687.3223922245. The cubic root of 3213452520 is about 1475.6746920068.

Adding to 3213452520 its reverse (252543123), we get a palindrome (3465995643).

The spelling of 3213452520 in words is "three billion, two hundred thirteen million, four hundred fifty-two thousand, five hundred twenty".