13279284 has 72 divisors (see below), whose sum is σ = 35340032. Its totient is φ = 4199040.

The previous prime is 13279267. The next prime is 13279297. The reversal of 13279284 is 48297231.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81387 + ... + 81549.

Almost surely, 2^13279284 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 13279284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17670016).

13279284 is an abundant number, since it is smaller than the sum of its proper divisors (22060748).

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

13279284 is a wasteful number, since it uses less digits than its factorization.

13279284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 272 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 13279284 is about 3644.0751913208. The cubic root of 13279284 is about 236.8053735161.

The spelling of 13279284 in words is "thirteen million, two hundred seventy-nine thousand, two hundred eighty-four".