1001804540 has 48 divisors (see below), whose sum is σ = 2348438400. Its totient is φ = 355817280.

The previous prime is 1001804539. The next prime is 1001804591. The reversal of 1001804540 is 454081001.

It is a super-2 number, since 2×1001804540² = 2007224672729223200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43490 + ... + 62409.

It is an arithmetic number, because the mean of its divisors is an integer number (48925800).

Almost surely, 2^1001804540 is an apocalyptic number.

1001804540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001804540 is an abundant number, since it is smaller than the sum of its proper divisors (1346633860).

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

1001804540 is a wasteful number, since it uses less digits than its factorization.

1001804540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105962 (or 105960 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 1001804540 is about 31651.2960240177. The cubic root of 1001804540 is about 1000.6011518773.

Adding to 1001804540 its reverse (454081001), we get a palindrome (1455885541).

The spelling of 1001804540 in words is "one billion, one million, eight hundred four thousand, five hundred forty".