5212408640 has 28 divisors (see below), whose sum is σ = 12412048836. Its totient is φ = 2084963328.

The previous prime is 5212408639. The next prime is 5212408651. The reversal of 5212408640 is 468042125.

It can be written as a sum of positive squares in 2 ways, for example, as 1329623296 + 3882785344 = 36464^2 + 62312^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 5212408597 and 5212408606.

It is a congruent number.

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, 8144069 + ... + 8144708.

Almost surely, 2^5212408640 is an apocalyptic number.

It is an amenable number.

5212408640 is an abundant number, since it is smaller than the sum of its proper divisors (7199640196).

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

5212408640 is a wasteful number, since it uses less digits than its factorization.

5212408640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16288794 (or 16288784 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 5212408640 is about 72197.0126805812. The cubic root of 5212408640 is about 1733.8551735816.

The spelling of 5212408640 in words is "five billion, two hundred twelve million, four hundred eight thousand, six hundred forty".