1303440030 has 24 divisors (see below), whose sum is σ = 3388944312. Its totient is φ = 347583984.

The previous prime is 1303440029. The next prime is 1303440041. The reversal of 1303440030 is 300443031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1303439985 and 1303440012.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 7241244 + ... + 7241423.

It is an arithmetic number, because the mean of its divisors is an integer number (141206013).

Almost surely, 2^1303440030 is an apocalyptic number.

1303440030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1303440030 is an abundant number, since it is smaller than the sum of its proper divisors (2085504282).

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

1303440030 is a wasteful number, since it uses less digits than its factorization.

1303440030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14482680 (or 14482677 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1303440030 is about 36103.1858705018. The cubic root of 1303440030 is about 1092.3547080600.

Adding to 1303440030 its reverse (300443031), we get a palindrome (1603883061).

The spelling of 1303440030 in words is "one billion, three hundred three million, four hundred forty thousand, thirty".