13490556 has 24 divisors (see below), whose sum is σ = 31557120. Its totient is φ = 4485552.

The previous prime is 13490509. The next prime is 13490573. The reversal of 13490556 is 65509431.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4575 + ... + 6921.

It is an arithmetic number, because the mean of its divisors is an integer number (1314880).

Almost surely, 2^13490556 is an apocalyptic number.

It is an amenable number.

13490556 is an abundant number, since it is smaller than the sum of its proper divisors (18066564).

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

13490556 is a wasteful number, since it uses less digits than its factorization.

13490556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833 (or 2831 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 13490556 is about 3672.9492237165. The cubic root of 13490556 is about 238.0546210816.

Adding to 13490556 its reverse (65509431), we get a palindrome (78999987).

The spelling of 13490556 in words is "thirteen million, four hundred ninety thousand, five hundred fifty-six".