13643412 has 12 divisors (see below), whose sum is σ = 31834656. Its totient is φ = 4547800.

The previous prime is 13643407. The next prime is 13643437. The reversal of 13643412 is 21434631.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×13643412² = 372285382003488, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568464 + ... + 568487.

It is an arithmetic number, because the mean of its divisors is an integer number (2652888).

Almost surely, 2^13643412 is an apocalyptic number.

13643412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13643412 is an abundant number, since it is smaller than the sum of its proper divisors (18191244).

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

13643412 is a wasteful number, since it uses less digits than its factorization.

13643412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136958 (or 1136956 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 13643412 is about 3693.6989590382. The cubic root of 13643412 is about 238.9503465298.

The spelling of 13643412 in words is "thirteen million, six hundred forty-three thousand, four hundred twelve".