1303404912 has 80 divisors (see below), whose sum is σ = 3745831680. Its totient is φ = 433937088.

The previous prime is 1303404901. The next prime is 1303404919. The reversal of 1303404912 is 2194043031.

1303404912 is a `hidden beast` number, since 130 + 3 + 40 + 491 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303404919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527103 + ... + 529569.

It is an arithmetic number, because the mean of its divisors is an integer number (46822896).

Almost surely, 2^1303404912 is an apocalyptic number.

1303404912 is a gapful number since it is divisible by the number (12) 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 1303404912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1872915840).

1303404912 is an abundant number, since it is smaller than the sum of its proper divisors (2442426768).

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

1303404912 is a wasteful number, since it uses less digits than its factorization.

1303404912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707 (or 3695 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1303404912 is about 36102.6995112554. The cubic root of 1303404912 is about 1092.3448976976.

Adding to 1303404912 its reverse (2194043031), we get a palindrome (3497447943).

The spelling of 1303404912 in words is "one billion, three hundred three million, four hundred four thousand, nine hundred twelve".