13413278 has 32 divisors (see below), whose sum is σ = 22464000. Its totient is φ = 5978016.

The previous prime is 13413271. The next prime is 13413287. The reversal of 13413278 is 87231431.

It is a self number, because there is not a number n which added to its sum of digits gives 13413278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13413271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89948 + ... + 90096.

It is an arithmetic number, because the mean of its divisors is an integer number (702000).

Almost surely, 2^13413278 is an apocalyptic number.

13413278 is a deficient number, since it is larger than the sum of its proper divisors (9050722).

13413278 is a wasteful number, since it uses less digits than its factorization.

13413278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296.

The product of its digits is 4032, while the sum is 29.

The square root of 13413278 is about 3662.4142310776. The cubic root of 13413278 is about 237.5992006647.

The spelling of 13413278 in words is "thirteen million, four hundred thirteen thousand, two hundred seventy-eight".