13478408 has 8 divisors (see below), whose sum is σ = 25272030. Its totient is φ = 6739200.

The previous prime is 13478401. The next prime is 13478431. The reversal of 13478408 is 80487431.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12264004 + 1214404 = 3502^2 + 1102^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13478401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 842393 + ... + 842408.

Almost surely, 2^13478408 is an apocalyptic number.

It is an amenable number.

13478408 is a deficient number, since it is larger than the sum of its proper divisors (11793622).

13478408 is a wasteful number, since it uses less digits than its factorization.

13478408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684807 (or 1684803 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 13478408 is about 3671.2951393207. The cubic root of 13478408 is about 237.9831450060.

The spelling of 13478408 in words is "thirteen million, four hundred seventy-eight thousand, four hundred eight".