1005343650 has 120 divisors (see below), whose sum is σ = 2869289940. Its totient is φ = 260807040.

The previous prime is 1005343631. The next prime is 1005343693. The reversal of 1005343650 is 563435001.

1005343650 is a `hidden beast` number, since 1 + 0 + 0 + 5 + 3 + 4 + 3 + 650 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 668584449 + 336759201 = 25857^2 + 18351^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

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 59 ways as a sum of consecutive naturals, for example, 146496 + ... + 153204.

Almost surely, 2^1005343650 is an apocalyptic number.

1005343650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1005343650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1434644970).

1005343650 is an abundant number, since it is smaller than the sum of its proper divisors (1863946290).

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

1005343650 is a wasteful number, since it uses less digits than its factorization.

1005343650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6770 (or 6756 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1005343650 is about 31707.1545553996. The cubic root of 1005343650 is about 1001.7780533193.

Adding to 1005343650 its reverse (563435001), we get a palindrome (1568778651).

The spelling of 1005343650 in words is "one billion, five million, three hundred forty-three thousand, six hundred fifty".