13411640 has 96 divisors (see below), whose sum is σ = 35335440. Its totient is φ = 4561920.

The previous prime is 13411621. The next prime is 13411661. The reversal of 13411640 is 4611431.

13411640 is nontrivially palindromic in base 9.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 23 ways as a sum of consecutive naturals, for example, 82199 + ... + 82361.

Almost surely, 2^13411640 is an apocalyptic number.

13411640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13411640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17667720).

13411640 is an abundant number, since it is smaller than the sum of its proper divisors (21923800).

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

13411640 is a wasteful number, since it uses less digits than its factorization.

13411640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 13411640 is about 3662.1906012659. The cubic root of 13411640 is about 237.5895285737.

The spelling of 13411640 in words is "thirteen million, four hundred eleven thousand, six hundred forty".