13481432 has 8 divisors (see below), whose sum is σ = 25277700. Its totient is φ = 6740712.

The previous prime is 13481417. The next prime is 13481443. The reversal of 13481432 is 23418431.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 842582 + ... + 842597.

Almost surely, 2^13481432 is an apocalyptic number.

It is an amenable number.

13481432 is a deficient number, since it is larger than the sum of its proper divisors (11796268).

13481432 is a wasteful number, since it uses less digits than its factorization.

13481432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685185 (or 1685181 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 13481432 is about 3671.7069599847. The cubic root of 13481432 is about 238.0009415494. Note that the first 3 decimals are identical.

Adding to 13481432 its reverse (23418431), we get a palindrome (36899863).

The spelling of 13481432 in words is "thirteen million, four hundred eighty-one thousand, four hundred thirty-two".