13404552 has 64 divisors (see below), whose sum is σ = 38858880. Its totient is φ = 3773952.
The previous prime is 13404533. The next prime is 13404563. The reversal of 13404552 is 25540431.
It is a super-3 number, since 3×134045523 (a number of 22 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11718 + ... + 12810.
It is an arithmetic number, because the mean of its divisors is an integer number (607170).
Almost surely, 213404552 is an apocalyptic number.
13404552 is a gapful number since it is divisible by the number (12) 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 13404552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19429440).
13404552 is an abundant number, since it is smaller than the sum of its proper divisors (25454328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13404552 is a wasteful number, since it uses less digits than its factorization.
13404552 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1182 (or 1178 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 24.
The square root of 13404552 is about 3661.2227465698. Note that the first 3 decimals coincide. The cubic root of 13404552 is about 237.5476661484.
Adding to 13404552 its reverse (25540431), we get a palindrome (38944983).
The spelling of 13404552 in words is "thirteen million, four hundred four thousand, five hundred fifty-two".
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