6340523620 has 48 divisors (see below), whose sum is σ = 14342243328. Its totient is φ = 2347678080.

The previous prime is 6340523617. The next prime is 6340523639. The reversal of 6340523620 is 263250436.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 208059 + ... + 236578.

It is an arithmetic number, because the mean of its divisors is an integer number (298796736).

Almost surely, 2^6340523620 is an apocalyptic number.

It is an amenable number.

6340523620 is an abundant number, since it is smaller than the sum of its proper divisors (8001719708).

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

6340523620 is a wasteful number, since it uses less digits than its factorization.

6340523620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444700 (or 444698 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 6340523620 is about 79627.4049558316. The cubic root of 6340523620 is about 1850.8662726538.

It can be divided in two parts, 63405 and 23620, that added together give a square (87025 = 295²).

The spelling of 6340523620 in words is "six billion, three hundred forty million, five hundred twenty-three thousand, six hundred twenty".