1001904320 has 56 divisors (see below), whose sum is σ = 2388772464. Its totient is φ = 400260096.

The previous prime is 1001904289. The next prime is 1001904433. The reversal of 1001904320 is 234091001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1001904292 and 1001904301.

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 7 ways as a sum of consecutive naturals, for example, 356039 + ... + 358841.

Almost surely, 2^1001904320 is an apocalyptic number.

1001904320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001904320 is an abundant number, since it is smaller than the sum of its proper divisors (1386868144).

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

1001904320 is a wasteful number, since it uses less digits than its factorization.

1001904320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937 (or 3927 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1001904320 is about 31652.8722235439. The cubic root of 1001904320 is about 1000.6343708219.

Adding to 1001904320 its reverse (234091001), we get a palindrome (1235995321).

The spelling of 1001904320 in words is "one billion, one million, nine hundred four thousand, three hundred twenty".