1303047220 has 48 divisors (see below), whose sum is σ = 2782216080. Its totient is φ = 512557056.

The previous prime is 1303047209. The next prime is 1303047253. The reversal of 1303047220 is 227403031.

It can be written as a sum of positive squares in 8 ways, for example, as 350213796 + 952833424 = 18714^2 + 30868^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1303047191 and 1303047200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341644 + ... + 345436.

It is an arithmetic number, because the mean of its divisors is an integer number (57962835).

Almost surely, 2^1303047220 is an apocalyptic number.

1303047220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303047220 is an abundant number, since it is smaller than the sum of its proper divisors (1479168860).

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

1303047220 is a wasteful number, since it uses less digits than its factorization.

1303047220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084 (or 4082 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 1303047220 is about 36097.7453589556. The cubic root of 1303047220 is about 1092.2449648794.

The spelling of 1303047220 in words is "one billion, three hundred three million, forty-seven thousand, two hundred twenty".