1303220224 has 52 divisors (see below), whose sum is σ = 2616172636. Its totient is φ = 649101312.

The previous prime is 1303220213. The next prime is 1303220231. The reversal of 1303220224 is 4220223031.

It can be written as a sum of positive squares in 2 ways, for example, as 339738624 + 963481600 = 18432^2 + 31040^2 .

It is a super-2 number, since 2×1303220224² = 3396765904485220352, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1527382 + ... + 1528234.

Almost surely, 2^1303220224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1303220224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1308086318).

1303220224 is an abundant number, since it is smaller than the sum of its proper divisors (1312952412).

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

1303220224 is an frugal number, since it uses more digits than its factorization.

1303220224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1303220224 is about 36100.1416063705. The cubic root of 1303220224 is about 1092.2933014203.

Adding to 1303220224 its reverse (4220223031), we get a palindrome (5523443255).

The spelling of 1303220224 in words is "one billion, three hundred three million, two hundred twenty thousand, two hundred twenty-four".