13404380 has 72 divisors (see below), whose sum is σ = 32175360. Its totient is φ = 4681600.

The previous prime is 13404373. The next prime is 13404383. The reversal of 13404380 is 8340431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13404383) by changing a digit.

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, 70085 + ... + 70275.

It is an arithmetic number, because the mean of its divisors is an integer number (446880).

Almost surely, 2^13404380 is an apocalyptic number.

13404380 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 13404380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16087680).

13404380 is an abundant number, since it is smaller than the sum of its proper divisors (18770980).

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

13404380 is a wasteful number, since it uses less digits than its factorization.

13404380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 13404380 is about 3661.1992570741. The cubic root of 13404380 is about 237.5466501161.

The spelling of 13404380 in words is "thirteen million, four hundred four thousand, three hundred eighty".