1345252224 has 32 divisors (see below), whose sum is σ = 3573327240. Its totient is φ = 448417280.

The previous prime is 1345252159. The next prime is 1345252241. The reversal of 1345252224 is 4222525431.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 1345252191 and 1345252200.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1751247 + ... + 1752014.

Almost surely, 2^1345252224 is an apocalyptic number.

It is an amenable number.

1345252224 is an abundant number, since it is smaller than the sum of its proper divisors (2228075016).

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

1345252224 is an equidigital number, since it uses as much as digits as its factorization.

1345252224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503278 (or 3503266 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 1345252224 is about 36677.6801883652. The cubic root of 1345252224 is about 1103.9123013722.

Adding to 1345252224 its reverse (4222525431), we get a palindrome (5567777655).

The spelling of 1345252224 in words is "one billion, three hundred forty-five million, two hundred fifty-two thousand, two hundred twenty-four".