13100440 has 16 divisors (see below), whose sum is σ = 29476080. Its totient is φ = 5240160.

The previous prime is 13100401. The next prime is 13100459. The reversal of 13100440 is 4400131.

It is a self number, because there is not a number n which added to its sum of digits gives 13100440.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 163716 + ... + 163795.

It is an arithmetic number, because the mean of its divisors is an integer number (1842255).

Almost surely, 2^13100440 is an apocalyptic number.

13100440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13100440 is an abundant number, since it is smaller than the sum of its proper divisors (16375640).

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

13100440 is a wasteful number, since it uses less digits than its factorization.

13100440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327522 (or 327518 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 13100440 is about 3619.4529973464. The cubic root of 13100440 is about 235.7374750023.

Adding to 13100440 its reverse (4400131), we get a palindrome (17500571).

It can be divided in two parts, 131004 and 40, that added together give a square (131044 = 362²).

The spelling of 13100440 in words is "thirteen million, one hundred thousand, four hundred forty".