13461978 has 8 divisors (see below), whose sum is σ = 26923968. Its totient is φ = 4487324.

The previous prime is 13461949. The next prime is 13461979. The reversal of 13461978 is 87916431.

It is a sphenic number, since it is the product of 3 distinct primes.

13461978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13461979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121826 + ... + 1121837.

It is an arithmetic number, because the mean of its divisors is an integer number (3365496).

Almost surely, 2^13461978 is an apocalyptic number.

13461978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13461978 is a wasteful number, since it uses less digits than its factorization.

13461978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243668.

The product of its digits is 36288, while the sum is 39.

The square root of 13461978 is about 3669.0568270333. The cubic root of 13461978 is about 237.8864062586.

The spelling of 13461978 in words is "thirteen million, four hundred sixty-one thousand, nine hundred seventy-eight".