3512456840 has 16 divisors (see below), whose sum is σ = 7903027980. Its totient is φ = 1404982720.

The previous prime is 3512456821. The next prime is 3512456867. The reversal of 3512456840 is 486542153.

3512456840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3502509124 + 9947716 = 59182^2 + 3154^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3512456794 and 3512456803.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43905671 + ... + 43905750.

Almost surely, 2^3512456840 is an apocalyptic number.

It is an amenable number.

3512456840 is an abundant number, since it is smaller than the sum of its proper divisors (4390571140).

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

3512456840 is a wasteful number, since it uses less digits than its factorization.

3512456840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87811432 (or 87811428 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 3512456840 is about 59265.9838355865. The cubic root of 3512456840 is about 1520.0936057312.

Adding to 3512456840 its reverse (486542153), we get a palindrome (3998998993).

The spelling of 3512456840 in words is "three billion, five hundred twelve million, four hundred fifty-six thousand, eight hundred forty".