1005363780 has 24 divisors (see below), whose sum is σ = 2815018752. Its totient is φ = 268096992.

The previous prime is 1005363773. The next prime is 1005363803. The reversal of 1005363780 is 873635001.

It is a happy number.

1005363780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8377972 + ... + 8378091.

It is an arithmetic number, because the mean of its divisors is an integer number (117292448).

Almost surely, 2^1005363780 is an apocalyptic number.

1005363780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1005363780 is an abundant number, since it is smaller than the sum of its proper divisors (1809654972).

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

1005363780 is a wasteful number, since it uses less digits than its factorization.

1005363780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16756075 (or 16756073 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1005363780 is about 31707.4719900531. The cubic root of 1005363780 is about 1001.7847394767.

Adding to 1005363780 its reverse (873635001), we get a palindrome (1878998781).

The spelling of 1005363780 in words is "one billion, five million, three hundred sixty-three thousand, seven hundred eighty".