1305040224 has 48 divisors (see below), whose sum is σ = 3627248688. Its totient is φ = 409423872.

The previous prime is 1305040183. The next prime is 1305040229. The reversal of 1305040224 is 4220405031.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1305040224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305040229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398197 + ... + 401460.

It is an arithmetic number, because the mean of its divisors is an integer number (75567681).

Almost surely, 2^1305040224 is an apocalyptic number.

It is an amenable number.

1305040224 is an abundant number, since it is smaller than the sum of its proper divisors (2322208464).

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

1305040224 is a wasteful number, since it uses less digits than its factorization.

1305040224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799687 (or 799679 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1305040224 is about 36125.3404689838. The cubic root of 1305040224 is about 1092.8015422278.

Adding to 1305040224 its reverse (4220405031), we get a palindrome (5525445255).

The spelling of 1305040224 in words is "one billion, three hundred five million, forty thousand, two hundred twenty-four".