13398912 has 64 divisors (see below), whose sum is σ = 39555600. Its totient is φ = 4465152.

The previous prime is 13398893. The next prime is 13398919. The reversal of 13398912 is 21989331.

It is a tau number, because it is divible by the number of its divisors (64).

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

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13398919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1518 + ... + 5394.

Almost surely, 2^13398912 is an apocalyptic number.

13398912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13398912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19777800).

13398912 is an abundant number, since it is smaller than the sum of its proper divisors (26156688).

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

13398912 is an equidigital number, since it uses as much as digits as its factorization.

13398912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900 (or 3882 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 13398912 is about 3660.4524310528. The cubic root of 13398912 is about 237.5143452092.

The spelling of 13398912 in words is "thirteen million, three hundred ninety-eight thousand, nine hundred twelve".