1331032224 has 24 divisors (see below), whose sum is σ = 3493959840. Its totient is φ = 443677376.

The previous prime is 1331032207. The next prime is 1331032231. The reversal of 1331032224 is 4222301331.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1331032224.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6932364 + ... + 6932555.

It is an arithmetic number, because the mean of its divisors is an integer number (145581660).

Almost surely, 2^1331032224 is an apocalyptic number.

It is an amenable number.

1331032224 is an abundant number, since it is smaller than the sum of its proper divisors (2162927616).

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

1331032224 is a wasteful number, since it uses less digits than its factorization.

1331032224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13864932 (or 13864924 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1331032224 is about 36483.3143231259. The cubic root of 1331032224 is about 1100.0088770633.

Adding to 1331032224 its reverse (4222301331), we get a palindrome (5553333555).

The spelling of 1331032224 in words is "one billion, three hundred thirty-one million, thirty-two thousand, two hundred twenty-four".