1003796640 has 432 divisors, whose sum is σ = 4308280704. Its totient is φ = 208327680.

The previous prime is 1003796609. The next prime is 1003796641. The reversal of 1003796640 is 466973001.

1003796640 is a `hidden beast` number, since 1 + 0 + 0 + 3 + 7 + 9 + 6 + 640 = 666.

1003796640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1003796595 and 1003796604.

It is not an unprimeable number, because it can be changed into a prime (1003796641) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1219269 + ... + 1220091.

It is an arithmetic number, because the mean of its divisors is an integer number (9972872).

Almost surely, 2^1003796640 is an apocalyptic number.

1003796640 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 1003796640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2154140352).

1003796640 is an abundant number, since it is smaller than the sum of its proper divisors (3304484064).

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

1003796640 is a wasteful number, since it uses less digits than its factorization.

1003796640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 851 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 1003796640 is about 31682.7498806527. The cubic root of 1003796640 is about 1001.2639484280.

The spelling of 1003796640 in words is "one billion, three million, seven hundred ninety-six thousand, six hundred forty".