1006650400 has 144 divisors (see below), whose sum is σ = 2956685760. Its totient is φ = 326937600.

The previous prime is 1006650397. The next prime is 1006650401. The reversal of 1006650400 is 40566001.

It is not an unprimeable number, because it can be changed into a prime (1006650401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101670 + ... + 111130.

It is an arithmetic number, because the mean of its divisors is an integer number (20532540).

Almost surely, 2^1006650400 is an apocalyptic number.

1006650400 is a gapful number since it is divisible by the number (10) 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 1006650400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1478342880).

1006650400 is an abundant number, since it is smaller than the sum of its proper divisors (1950035360).

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

1006650400 is a wasteful number, since it uses less digits than its factorization.

1006650400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9507 (or 9494 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1006650400 is about 31727.7544115558. The cubic root of 1006650400 is about 1002.2119038740.

The spelling of 1006650400 in words is "one billion, six million, six hundred fifty thousand, four hundred".