13278936 has 64 divisors (see below), whose sum is σ = 36547200. Its totient is φ = 3987200.

The previous prime is 13278913. The next prime is 13278949. The reversal of 13278936 is 63987231.

13278936 = T₇₃ + T₇₄ + ... + T₄₃₀.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13278894 and 13278903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47116 + ... + 47396.

It is an arithmetic number, because the mean of its divisors is an integer number (571050).

Almost surely, 2^13278936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13278936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18273600).

13278936 is an abundant number, since it is smaller than the sum of its proper divisors (23268264).

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

13278936 is a wasteful number, since it uses less digits than its factorization.

13278936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 476 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 13278936 is about 3644.0274422677. The cubic root of 13278936 is about 236.8033049058.

The spelling of 13278936 in words is "thirteen million, two hundred seventy-eight thousand, nine hundred thirty-six".