3240123500 has 96 divisors (see below), whose sum is σ = 7524316800. Its totient is φ = 1218886400.

The previous prime is 3240123493. The next prime is 3240123521. The reversal of 3240123500 is 53210423.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2455841 + ... + 2457159.

It is an arithmetic number, because the mean of its divisors is an integer number (78378300).

Almost surely, 2^3240123500 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 3240123500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3762158400).

3240123500 is an abundant number, since it is smaller than the sum of its proper divisors (4284193300).

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

3240123500 is a wasteful number, since it uses less digits than its factorization.

3240123500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3240123500 is about 56922.0827096128. The cubic root of 3240123500 is about 1479.7460454206.

Adding to 3240123500 its reverse (53210423), we get a palindrome (3293333923).

The spelling of 3240123500 in words is "three billion, two hundred forty million, one hundred twenty-three thousand, five hundred".