1004050320 has 320 divisors, whose sum is σ = 3957080064. Its totient is φ = 204871680.

The previous prime is 1004050309. The next prime is 1004050337. The reversal of 1004050320 is 230504001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1004050320.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 676299 + ... + 677781.

Almost surely, 2^1004050320 is an apocalyptic number.

1004050320 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 1004050320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1978540032).

1004050320 is an abundant number, since it is smaller than the sum of its proper divisors (2953029744).

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

1004050320 is a wasteful number, since it uses less digits than its factorization.

1004050320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550 (or 1544 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 1004050320 is about 31686.7530681198. The cubic root of 1004050320 is about 1001.3482879692.

Adding to 1004050320 its reverse (230504001), we get a palindrome (1234554321).

The spelling of 1004050320 in words is "one billion, four million, fifty thousand, three hundred twenty".