13898826 has 48 divisors (see below), whose sum is σ = 32525064. Its totient is φ = 4273152.

The previous prime is 13898783. The next prime is 13898827. The reversal of 13898826 is 62889831.

It can be written as a sum of positive squares in 4 ways, for example, as 13682601 + 216225 = 3699^2 + 465^2 .

It is not an unprimeable number, because it can be changed into a prime (13898827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15790 + ... + 16646.

Almost surely, 2^13898826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13898826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16262532).

13898826 is an abundant number, since it is smaller than the sum of its proper divisors (18626238).

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

13898826 is a wasteful number, since it uses less digits than its factorization.

13898826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935 (or 932 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 13898826 is about 3728.1129274742. The cubic root of 13898826 is about 240.4322418949.

The spelling of 13898826 in words is "thirteen million, eight hundred ninety-eight thousand, eight hundred twenty-six".