13428488 has 16 divisors (see below), whose sum is σ = 25240380. Its totient is φ = 6697728.

The previous prime is 13428461. The next prime is 13428491. The reversal of 13428488 is 88482431.

It can be written as a sum of positive squares in 2 ways, for example, as 13380964 + 47524 = 3658^2 + 218^2 .

It is a super-2 number, since 2×13428488² = 360648579932288, which contains 22 as substring.

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, 1820 + ... + 5492.

Almost surely, 2^13428488 is an apocalyptic number.

It is an amenable number.

13428488 is a deficient number, since it is larger than the sum of its proper divisors (11811892).

13428488 is a wasteful number, since it uses less digits than its factorization.

13428488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4136 (or 4132 counting only the distinct ones).

The product of its digits is 49152, while the sum is 38.

The square root of 13428488 is about 3664.4901418888. The cubic root of 13428488 is about 237.6889753569.

The spelling of 13428488 in words is "thirteen million, four hundred twenty-eight thousand, four hundred eighty-eight".