13956490 has 32 divisors (see below), whose sum is σ = 27118800. Its totient is φ = 5151744.

The previous prime is 13956487. The next prime is 13956491. The reversal of 13956490 is 9465931.

It can be written as a sum of positive squares in 8 ways, for example, as 8485569 + 5470921 = 2913^2 + 2339^2 .

It is a super-3 number, since 3×13956490³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (13956491) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 8236 + ... + 9784.

Almost surely, 2^13956490 is an apocalyptic number.

13956490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13956490 is a deficient number, since it is larger than the sum of its proper divisors (13162310).

13956490 is a wasteful number, since it uses less digits than its factorization.

13956490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 13956490 is about 3735.8385939438. The cubic root of 13956490 is about 240.7642880525.

The spelling of 13956490 in words is "thirteen million, nine hundred fifty-six thousand, four hundred ninety".