6355785240 has 192 divisors, whose sum is σ = 24996029760. Its totient is φ = 1367285760.

The previous prime is 6355785179. The next prime is 6355785253. The reversal of 6355785240 is 425875536.

6355785240 is a `hidden beast` number, since 6 + 3 + 55 + 78 + 524 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 31341 + ... + 117020.

It is an arithmetic number, because the mean of its divisors is an integer number (130187655).

Almost surely, 2^6355785240 is an apocalyptic number.

6355785240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6355785240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12498014880).

6355785240 is an abundant number, since it is smaller than the sum of its proper divisors (18640244520).

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

6355785240 is a wasteful number, since it uses less digits than its factorization.

6355785240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148402 (or 148395 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The square root of 6355785240 is about 79723.1788126891. The cubic root of 6355785240 is about 1852.3500924989.

It can be divided in two parts, 635 and 5785240, that added together give a palindrome (5785875).

The spelling of 6355785240 in words is "six billion, three hundred fifty-five million, seven hundred eighty-five thousand, two hundred forty".