1000304040 has 64 divisors (see below), whose sum is σ = 3131395200. Its totient is φ = 255149312.

The previous prime is 1000304027. The next prime is 1000304059. The reversal of 1000304040 is 404030001.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 178455 + ... + 183974.

It is an arithmetic number, because the mean of its divisors is an integer number (48928050).

Almost surely, 2^1000304040 is an apocalyptic number.

1000304040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000304040 is an abundant number, since it is smaller than the sum of its proper divisors (2131091160).

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

1000304040 is a wasteful number, since it uses less digits than its factorization.

1000304040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362466 (or 362462 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1000304040 is about 31627.5835308359. The cubic root of 1000304040 is about 1000.1013363973.

Adding to 1000304040 its reverse (404030001), we get a palindrome (1404334041).

The spelling of 1000304040 in words is "one billion, three hundred four thousand, forty".