13200404 has 18 divisors (see below), whose sum is σ = 26872650. Its totient is φ = 5657232.

The previous prime is 13200359. The next prime is 13200409. The reversal of 13200404 is 40400231.

It can be written as a sum of positive squares in only one way, i.e., 6708100 + 6492304 = 2590^2 + 2548^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13200409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33479 + ... + 33870.

It is an arithmetic number, because the mean of its divisors is an integer number (1492925).

Almost surely, 2^13200404 is an apocalyptic number.

13200404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13200404 is an abundant number, since it is smaller than the sum of its proper divisors (13672246).

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

13200404 is a wasteful number, since it uses less digits than its factorization.

13200404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67367 (or 67358 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 13200404 is about 3633.2360231617. The cubic root of 13200404 is about 236.3355611445.

Adding to 13200404 its reverse (40400231), we get a palindrome (53600635).

The spelling of 13200404 in words is "thirteen million, two hundred thousand, four hundred four".