1305424528 has 40 divisors (see below), whose sum is σ = 2601777920. Its totient is φ = 634055040.

The previous prime is 1305424513. The next prime is 1305424529. The reversal of 1305424528 is 8254245031.

It is a super-3 number, since 3×1305424528³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1305424493 and 1305424502.

It is not an unprimeable number, because it can be changed into a prime (1305424529) 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, 478753 + ... + 481471.

It is an arithmetic number, because the mean of its divisors is an integer number (65044448).

Almost surely, 2^1305424528 is an apocalyptic number.

It is an amenable number.

1305424528 is a deficient number, since it is larger than the sum of its proper divisors (1296353392).

1305424528 is a wasteful number, since it uses less digits than its factorization.

1305424528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575 (or 3569 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 1305424528 is about 36130.6591138329. The cubic root of 1305424528 is about 1092.9087999147.

Adding to 1305424528 its reverse (8254245031), we get a palindrome (9559669559).

The spelling of 1305424528 in words is "one billion, three hundred five million, four hundred twenty-four thousand, five hundred twenty-eight".