13028276 has 6 divisors (see below), whose sum is σ = 22799490. Its totient is φ = 6514136.

The previous prime is 13028263. The next prime is 13028291. The reversal of 13028276 is 67282031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11764900 + 1263376 = 3430^2 + 1124^2 .

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 as a sum of consecutive naturals, namely, 1628531 + ... + 1628538.

It is an arithmetic number, because the mean of its divisors is an integer number (3799915).

Almost surely, 2^13028276 is an apocalyptic number.

It is an amenable number.

13028276 is a deficient number, since it is larger than the sum of its proper divisors (9771214).

13028276 is a wasteful number, since it uses less digits than its factorization.

13028276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257073 (or 3257071 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 13028276 is about 3609.4703212521. The cubic root of 13028276 is about 235.3038231144.

The spelling of 13028276 in words is "thirteen million, twenty-eight thousand, two hundred seventy-six".