13448640 has 56 divisors (see below), whose sum is σ = 42702480. Its totient is φ = 3586048.

The previous prime is 13448639. The next prime is 13448651. The reversal of 13448640 is 4684431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13448598 and 13448607.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 6045 + ... + 7964.

Almost surely, 2^13448640 is an apocalyptic number.

13448640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13448640 is an abundant number, since it is smaller than the sum of its proper divisors (29253840).

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

13448640 is a wasteful number, since it uses less digits than its factorization.

13448640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14029 (or 14019 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 13448640 is about 3667.2387432508. The cubic root of 13448640 is about 237.8078150995.

The spelling of 13448640 in words is "thirteen million, four hundred forty-eight thousand, six hundred forty".