13441978 has 16 divisors (see below), whose sum is σ = 22055904. Its totient is φ = 6093360.

The previous prime is 13441963. The next prime is 13442017. The reversal of 13441978 is 87914431.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11476 + ... + 12592.

It is an arithmetic number, because the mean of its divisors is an integer number (1378494).

Almost surely, 2^13441978 is an apocalyptic number.

13441978 is a deficient number, since it is larger than the sum of its proper divisors (8613926).

13441978 is a wasteful number, since it uses less digits than its factorization.

13441978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677.

The product of its digits is 24192, while the sum is 37.

The square root of 13441978 is about 3666.3303179064. The cubic root of 13441978 is about 237.7685413059.

The spelling of 13441978 in words is "thirteen million, four hundred forty-one thousand, nine hundred seventy-eight".