13020452 has 12 divisors (see below), whose sum is σ = 23341836. Its totient is φ = 6351360.

The previous prime is 13020439. The next prime is 13020467. The reversal of 13020452 is 25402031.

It can be written as a sum of positive squares in 2 ways, for example, as 3936256 + 9084196 = 1984^2 + 3014^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13020452.

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, 39533 + ... + 39860.

It is an arithmetic number, because the mean of its divisors is an integer number (1945153).

Almost surely, 2^13020452 is an apocalyptic number.

It is an amenable number.

13020452 is a deficient number, since it is larger than the sum of its proper divisors (10321384).

13020452 is a wasteful number, since it uses less digits than its factorization.

13020452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79438 (or 79436 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 13020452 is about 3608.3863429517. The cubic root of 13020452 is about 235.2567105680.

Adding to 13020452 its reverse (25402031), we get a palindrome (38422483).

The spelling of 13020452 in words is "thirteen million, twenty thousand, four hundred fifty-two".